{"id":9852,"date":"2026-08-18T17:00:06","date_gmt":"2026-08-18T09:00:06","guid":{"rendered":"https:\/\/meettfit.com\/?p=9852"},"modified":"2026-08-18T12:01:18","modified_gmt":"2026-08-18T04:01:18","slug":"how-is-pvc-flooring-bond-strength-tested-on-site","status":"publish","type":"post","link":"https:\/\/meettfit.com\/pt\/blogue-sobre-pavimentos-em-pvc\/como-e-testada-a-resistencia-de-aderencia-do-pavimento-em-pvc-no-local\/","title":{"rendered":"Como \u00e9 testada a resist\u00eancia de ader\u00eancia do pavimento em PVC no local"},"content":{"rendered":"

N\u00e3o existe um valor \u00fanico e universal para a resist\u00eancia \u00e0 tra\u00e7\u00e3o em campo no caso dos pavimentos em PVC. A qualidade da ader\u00eancia \u00e9 normalmente verificada atrav\u00e9s de uma avalia\u00e7\u00e3o da ader\u00eancia do tapete antes da instala\u00e7\u00e3o e, quando necess\u00e1rio, de um teste de descolagem ou levantamento ap\u00f3s a instala\u00e7\u00e3o. Os ensaios quantitativos devem seguir exclusivamente o m\u00e9todo e os crit\u00e9rios de aceita\u00e7\u00e3o estabelecidos nas especifica\u00e7\u00f5es do projeto ou pelo fabricante.<\/strong><\/p>\n

I’ve walked onto too many job sites where a floor looked perfect on install day, then started lifting three weeks later. That gap between "looks fine" and "is actually bonded" is why on-site checks exist. This guide is built for installers, flooring inspectors, general contractors, and facility managers who need to confirm a PVC floor is bonded before they sign off on the job. I’ll walk through the real standards that apply, the difference between pre- and post-installation testing, the tools involved, and how to fix a bond that fails.<\/p>\n

Uma liga\u00e7\u00e3o que parece s\u00f3lida no primeiro dia pode, ainda assim, falhar mais tarde. Antes de abordar os m\u00e9todos de teste, deixem-me explicar por que raz\u00e3o esta etapa \u00e9 t\u00e3o importante em todos os projetos.<\/p>\n

Por que raz\u00e3o \u00e9 importante testar a ader\u00eancia dos pavimentos em PVC?<\/h2>\n

Os testes de ader\u00eancia permitem detetar pontos fracos antes que estes se traduzam em bolhas, levantamento do pavimento ou na necessidade de substituir todo o pavimento. A maioria das falhas de ader\u00eancia deve-se \u00e0 humidade, a uma m\u00e1 prepara\u00e7\u00e3o da superf\u00edcie ou \u00e0 utiliza\u00e7\u00e3o do adesivo errado. Detetar estes problemas numa fase inicial custa muito menos do que corrigi-los depois de o pavimento estar em utiliza\u00e7\u00e3o.<\/strong><\/p>\n

Causas comuns de falha nas liga\u00e7\u00f5es<\/h3>\n

Ao longo dos meus anos de experi\u00eancia em obras de pavimenta\u00e7\u00e3o comercial, h\u00e1 tr\u00eas problemas que s\u00e3o a causa da maioria das falhas na garantia:<\/p>\n\n\n\n\n\n\n\n
Causa<\/th>\nO que acontece<\/th>\n<\/tr>\n<\/thead>\n
Humidade no subpavimento ou elevada alcalinidade<\/td>\nO adesivo degrada-se a partir de baixo e o pavimento levanta-se<\/td>\n<\/tr>\n
P\u00f3, res\u00edduos de cimento ou prepara\u00e7\u00e3o inadequada<\/td>\nAdhesive can’t grip the substrate<\/td>\n<\/tr>\n
Adesivo inadequado ou tempo de abertura\/ader\u00eancia inadequado<\/td>\nAdes\u00e3o fraca ou irregular ao longo do pavimento<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

A failed floor in an occupied commercial space means lost use of the area, tear-out labor, and sometimes a dispute over who’s responsible. A pre-installation check or a spot investigation costs a fraction of that. I treat it as cheap insurance, not an extra step.<\/p>\n

\"T\u00e9cnico<\/p>\n

Os testes s\u00e3o importantes, mas tamb\u00e9m \u00e9 importante saber qual \u00e9 a norma que se aplica efetivamente. \u00c9 aqui que grande parte do conte\u00fado online sobre pavimentos se engana.<\/p>\n

Existe alguma norma ASTM para ensaios de ader\u00eancia de pavimentos em PVC realizados no local?<\/h2>\n

Sim, mas n\u00e3o existe uma \u00fanica norma que abranja todos os aspetos. A norma ASTM F3311 abrange a avalia\u00e7\u00e3o da ader\u00eancia do tapete antes da instala\u00e7\u00e3o. As normas ASTM D6004 e ASTM D903 abrangem os ensaios laboratoriais de cisalhamento e descolagem do adesivo. A norma ASTM D4541 abrange os ensaios port\u00e1teis de descolagem, mas foi concebida para revestimentos, e n\u00e3o para pavimentos resilientes.<\/strong><\/p>\n

Correlacionar cada norma com o seu objetivo real<\/h3>\n\n\n\n\n\n\n\n\n\n\n
M\u00e9todo<\/th>\nObjetivo principal<\/th>\nNo local?<\/th>\nQuantitativo?<\/th>\n<\/tr>\n<\/thead>\n
Avalia\u00e7\u00e3o da ader\u00eancia do tapete segundo a norma ASTM F3311<\/td>\nVerifica\u00e7\u00e3o de compatibilidade antes da instala\u00e7\u00e3o<\/td>\nSim<\/td>\nPrincipalmente qualitativo<\/td>\n<\/tr>\n
Verifica\u00e7\u00e3o de descascamento ou levantamento no terreno<\/td>\nDiagn\u00f3stico de um pavimento instalado<\/td>\nSim<\/td>\nPor vezes<\/td>\n<\/tr>\n
Investiga\u00e7\u00e3o de desprendimento espec\u00edfica do projeto<\/td>\nInvestiga\u00e7\u00e3o de falhas<\/td>\nSim<\/td>\nSim, quando definido pela especifica\u00e7\u00e3o<\/td>\n<\/tr>\n
ASTM D6004<\/td>\nResist\u00eancia ao cisalhamento da colagem<\/td>\nPrincipalmente controlado em laborat\u00f3rio<\/td>\nSim<\/td>\n<\/tr>\n
ASTM D903<\/td>\nResist\u00eancia \u00e0 descolagem do adesivo<\/td>\nControlado em laborat\u00f3rio<\/td>\nSim<\/td>\n<\/tr>\n
ASTM D4541 \/ D7234<\/td>\nAder\u00eancia \u00e0 tra\u00e7\u00e3o do revestimento<\/td>\nField, mas concebido para revestimentos<\/td>\nSim<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

I want to be direct about something a lot of flooring articles get wrong: ASTM D4541 is a coating adhesion standard, not a dedicated acceptance standard for adhered PVC flooring. A pull-off tester can still be used for diagnostic investigation on a flooring assembly, but only when the project specification defines the procedure and acceptance criteria. Reporting a result as "an ASTM D4541 PVC flooring test" overstates what the standard actually covers. Same goes for D903, a peel principle can be adapted for a field check, but unless specimen prep, pull rate, angle, and equipment match the lab standard, the result shouldn’t be labeled a D903 test.<\/p>\n

Tendo em conta as normas adequadas, a pr\u00f3xima quest\u00e3o \u00e9 a do momento certo. As verifica\u00e7\u00f5es de t\u00edtulos dividem-se em duas categorias muito diferentes.<\/p>\n

Testes de liga\u00e7\u00e3o antes e ap\u00f3s a instala\u00e7\u00e3o<\/h2>\n

Os ensaios pr\u00e9-instala\u00e7\u00e3o, realizados de acordo com a norma ASTM F3311, confirmam que o sistema de pavimento ir\u00e1 aderir corretamente antes do in\u00edcio dos trabalhos. Os ensaios p\u00f3s-instala\u00e7\u00e3o analisam a ader\u00eancia a posteriori, normalmente porque j\u00e1 surgiu um problema ou porque as especifica\u00e7\u00f5es exigem uma verifica\u00e7\u00e3o pontual.<\/strong><\/p>\n

Estes servem objetivos diferentes. Os testes pr\u00e9-instala\u00e7\u00e3o previnem problemas. Os testes p\u00f3s-instala\u00e7\u00e3o permitem diagnostic\u00e1-los. Um plano de testes de liga\u00e7\u00e3o s\u00f3lido recorre a ambos, e n\u00e3o apenas a um ou a outro.<\/p>\n

Como se realiza um teste de ader\u00eancia do tapete antes da instala\u00e7\u00e3o?<\/h2>\n

Um ensaio de ader\u00eancia em camada, de acordo com a norma ASTM F3311, consiste em instalar uma pequena amostra do sistema de pavimento real sobre o substrato real, deixar curar e, em seguida, avaliar a ader\u00eancia e o padr\u00e3o de transfer\u00eancia. Este ensaio verifica se a superf\u00edcie de bet\u00e3o, o prim\u00e1rio, a camada de base e o adesivo s\u00e3o efetivamente compat\u00edveis antes da instala\u00e7\u00e3o do pavimento completo.<\/strong><\/p>\n

Procedimento passo a passo para a colagem de tapetes<\/h3>\n
    \n
  1. Selecione uma \u00e1rea representativa do subpavimento, incluindo eventuais valas de drenagem ou zonas at\u00edpicas.<\/li>\n
  2. Prepare o substrato da mesma forma que seria preparado para a instala\u00e7\u00e3o completa.<\/li>\n
  3. Apply primer and adhesive following the manufacturer’s written instructions.<\/li>\n
  4. Instale uma amostra do pavimento em PVC a instalar.<\/li>\n
  5. Allow curing per each manufacturer’s open, curing, and drying time requirements.<\/li>\n
  6. Retire a amostra e verifique a transfer\u00eancia do adesivo e a qualidade da ader\u00eancia.<\/li>\n<\/ol>\n

    ASTM F3311 is explicit that this practice isn’t mandatory on every job. I use it most often when products from different manufacturers are being combined for the first time, or when the substrate condition is uncertain. Getting the compatibility check right at this stage prevents a much larger problem later.<\/p>\n

    A verifica\u00e7\u00e3o da ader\u00eancia do tapete \u00e9 feita antes da coloca\u00e7\u00e3o do pavimento. Assim que o pavimento estiver colocado e algo parecer errado, a abordagem muda.<\/p>\n

    Como se realiza um teste de descascamento no terreno ap\u00f3s a instala\u00e7\u00e3o?<\/h2>\n

    A field peel check cuts a narrow strip through the installed flooring, peels it back at a steady angle, and measures the force needed to separate it from the substrate. This isn’t a formal ASTM D903 test unless the specimen geometry, pull rate, and equipment match the lab standard, but the same peel principle applies.<\/strong><\/p>\n

    Verifica\u00e7\u00e3o passo a passo da descama\u00e7\u00e3o no terreno<\/h3>\n
      \n
    1. Corte uma faixa com 1 polegada (25 mm) de largura no pavimento de PVC.<\/li>\n
    2. Descole uma aba inicial com cerca de 2 polegadas.<\/li>\n
    3. Fixa uma pin\u00e7a do medidor de for\u00e7a \u00e0 aba.<\/li>\n
    4. Puxe a tira para tr\u00e1s, mantendo um \u00e2ngulo e uma velocidade constantes.<\/li>\n
    5. Registe a for\u00e7a necess\u00e1ria para separar o pavimento do suporte.<\/li>\n
    6. Inspecione e fotografe a superf\u00edcie exposta.<\/li>\n<\/ol>\n

      Este m\u00e9todo \u00e9 destrutivo, pelo que s\u00f3 o aplico numa \u00e1rea n\u00e3o cr\u00edtica ou numa sec\u00e7\u00e3o j\u00e1 identificada para repara\u00e7\u00e3o.<\/p>\n

      \u00c9 poss\u00edvel utilizar um testador de resist\u00eancia \u00e0 tra\u00e7\u00e3o em pavimentos de PVC?<\/h2>\n

      Sim, como ferramenta de diagn\u00f3stico, mas com limita\u00e7\u00f5es. Um medidor port\u00e1til de resist\u00eancia \u00e0 arrancagem foi concebido para sistemas de revestimento, e n\u00e3o para conjuntos de pavimentos resilientes multicamadas. Num sistema de pavimento, o plano mais fraco pode ter v\u00e1rias camadas de profundidade, pelo que os resultados devem ser interpretados com cuidado.<\/strong><\/p>\n

      In a PVC flooring assembly, the layers stack up as PVC sheet or tile, adhesive, sometimes a primer or patch compound, then concrete. When I glue a dolly to the PVC surface and pull, the failure could happen at the epoxy-to-PVC interface, within the PVC itself, at the flooring adhesive, at the primer, or at the concrete surface. That’s useful information, but it’s an adapted diagnostic investigation, not a certified acceptance test, unless the project specification defines the exact procedure and pass\/fail criteria in advance.<\/p>\n

      \"Testador<\/p>\n

      Seja qual for o m\u00e9todo utilizado, as ferramentas adequadas fazem a diferen\u00e7a entre uma leitura \u00fatil e um teste desperdi\u00e7ado.<\/p>\n

      Que ferramentas s\u00e3o necess\u00e1rias para a realiza\u00e7\u00e3o de ensaios de ader\u00eancia no local?<\/h2>\n\n\n\n\n\n\n\n\n\n\n
      Ferramenta<\/th>\nUtilizado para<\/th>\n<\/tr>\n<\/thead>\n
      Testador port\u00e1til de ader\u00eancia por arranque<\/td>\nInvestiga\u00e7\u00e3o de pull-off para fins de diagn\u00f3stico<\/td>\n<\/tr>\n
      Carros de transporte ou suportes met\u00e1licos<\/td>\nFixa\u00e7\u00e3o do medidor de resist\u00eancia \u00e0 tra\u00e7\u00e3o \u00e0 superf\u00edcie<\/td>\n<\/tr>\n
      Ep\u00f3xi de cura r\u00e1pida<\/td>\nFixa\u00e7\u00e3o do carrinho ao pavimento<\/td>\n<\/tr>\n
      Medidor de for\u00e7a port\u00e1til ou balan\u00e7a de mola<\/td>\nVerifica\u00e7\u00f5es de descascamento no terreno<\/td>\n<\/tr>\n
      Faca de corte e r\u00e9gua de metal<\/td>\nCorte de tiras de teste<\/td>\n<\/tr>\n
      Medidor de humidade<\/td>\nVerifica\u00e7\u00e3o da humidade do subpavimento antes dos ensaios<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Quando se deve testar a resist\u00eancia da liga\u00e7\u00e3o?<\/h2>\n

      Testing timing depends on the adhesive and flooring manufacturer’s written instructions, not a fixed number of hours. Depending on the system, full cure before a destructive assessment might be 24, 48, 72 hours, or longer.<\/strong><\/p>\n

      I always check the adhesive’s technical data sheet before scheduling a test. Testing too early, before the adhesive reaches its stated cure point, gives a misleadingly low reading. The same goes for room conditions. I test under the same temperature and humidity range the manufacturer specifies for that product, since this varies between adhesive systems.<\/p>\n

      Quantos locais de exame devem ser utilizados?<\/h2>\n

      O n\u00famero adequado de pontos de teste depende das especifica\u00e7\u00f5es do projeto, mas, em geral, tenho em conta:<\/p>\n

        \n
      • O per\u00edmetro da \u00e1rea onde o produto foi instalado, onde as bordas s\u00e3o mais propensas a levantar-se.<\/li>\n
      • O centro de grandes \u00e1reas abertas.<\/li>\n
      • Qualquer local em que os instaladores tenham assinalado um problema durante o trabalho.<\/li>\n
      • Zonas em que o tipo de substrato ou de adesivo muda.<\/li>\n<\/ul>\n

        Abranger v\u00e1rios locais, e n\u00e3o apenas um, proporciona uma vis\u00e3o muito mais fi\u00e1vel de toda a instala\u00e7\u00e3o.<\/p>\n

        Qual \u00e9 a resist\u00eancia de ader\u00eancia aceit\u00e1vel para um pavimento em PVC?<\/h2>\n

        N\u00e3o existe um valor \u00fanico em PSI, MPa ou N\/mm que se aplique a todos os sistemas de pavimentos em PVC. A resist\u00eancia de ader\u00eancia aceit\u00e1vel \u00e9 determinada pelo fabricante do pavimento, pelo fabricante do adesivo, pelas especifica\u00e7\u00f5es do projeto ou por uma amostra aprovada, e n\u00e3o por um valor universal do setor.<\/strong><\/p>\n

        This is one of the most common questions I get, and it’s worth being clear about. Different adhesive chemistries, different PVC constructions, and different substrate types all carry different acceptance thresholds. Before I run any test, I pull the adhesive manufacturer’s technical data sheet and the project specification to find the actual target. Comparing a field reading against the wrong benchmark leads to bad decisions either way, rejecting a bond that’s actually fine, or approving one that isn’t.<\/p>\n

        Como \u00e9 que se interpreta o plano de falha?<\/h2>\n

        O local onde o pavimento se separa durante um ensaio diz-me mais do que apenas o valor da for\u00e7a. A falha pode ocorrer no pr\u00f3prio PVC, na interface do adesivo, no pr\u00f3prio adesivo, no prim\u00e1rio ou no bet\u00e3o, e cada uma destas situa\u00e7\u00f5es aponta para uma causa subjacente diferente.<\/strong><\/p>\n

        Interpretar o plano de falha<\/h3>\n\n\n\n\n\n\n\n\n\n
        Localiza\u00e7\u00e3o da avaria<\/th>\nCausa prov\u00e1vel<\/th>\n<\/tr>\n<\/thead>\n
        Interface entre o PVC e o adesivo<\/td>\nContamina\u00e7\u00e3o da superf\u00edcie, tempo de abertura incorreto, adesivo incompat\u00edvel<\/td>\n<\/tr>\n
        No interior do adesivo (falha coesiva)<\/td>\nAdesivo com cura insuficiente, infiltra\u00e7\u00e3o de humidade, mistura inadequada<\/td>\n<\/tr>\n
        Interface entre o adesivo e o substrato<\/td>\nP\u00f3, res\u00edduos de cimento ou um problema com o prim\u00e1rio<\/td>\n<\/tr>\n
        No interior da camada de base ou da massa de remendo<\/td>\nA fraqueza passou para essa camada<\/td>\n<\/tr>\n
        No interior da superf\u00edcie de bet\u00e3o<\/td>\nAdhesive is stronger than the substrate’s tensile strength<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        A high force reading with the PVC tearing before the bond gives way is generally a strong result. But I don’t treat that as automatic proof the whole system is sound; it only confirms that spot. Reading the failure plane correctly, and comparing it against the manufacturer’s criteria, is what separates a useful test from a number on a page.<\/p>\n

        \"Inspe\u00e7\u00e3o<\/p>\n

        Compreender o plano de falha leva diretamente \u00e0 resolu\u00e7\u00e3o da causa que a provocou.<\/p>\n

        O que causa uma baixa resist\u00eancia de ader\u00eancia nos pavimentos em PVC?<\/h2>\n\n\n\n\n\n\n\n\n
        Problema<\/th>\nFixar<\/th>\n<\/tr>\n<\/thead>\n
        Elevados n\u00edveis de humidade ou pH no subpavimento<\/td>\nInstale um sistema de mitiga\u00e7\u00e3o da humidade adequado \u00e0 leitura obtida, de acordo com os ensaios previstos nas normas ASTM F2170 ou F1869<\/td>\n<\/tr>\n
        Substrato empoeirado, fr\u00e1gil ou poroso<\/td>\nLimpe bem, aplique um prim\u00e1rio compat\u00edvel ou utilize um composto autonivelante<\/td>\n<\/tr>\n
        Entalhe incorreto na esp\u00e1tula ou cobertura inadequada do adesivo<\/td>\nMatch trowel size to the adhesive manufacturer’s technical data sheet<\/td>\n<\/tr>\n
        Rolamento inadequado<\/td>\nPasse o peso pelo ch\u00e3o, seguindo a sequ\u00eancia indicada pelo fabricante<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        I’ve seen inadequate rolling cause more failed bonds than people expect. Skipping a proper rolling pass leaves air pockets under the flooring, even when the adhesive itself is fine. Commercial sheet and tile systems commonly call for a heavy sectional roller, but the exact weight and pass count should come from the adhesive manufacturer, not a generic rule.<\/p>\n

        Como devem ser documentados os ensaios de ades\u00e3o realizados no local?<\/h2>\n
          \n
        1. Anote o local do teste e o m\u00e9todo utilizado.<\/li>\n
        2. Registe as condi\u00e7\u00f5es ambientais no momento do ensaio.<\/li>\n
        3. Registe o valor exato da for\u00e7a ou da press\u00e3o, caso se trate de uma medi\u00e7\u00e3o quantitativa.<\/li>\n
        4. Fotografe a superf\u00edcie de falha.<\/li>\n
        5. Identifique o plano de falha e a causa prov\u00e1vel.<\/li>\n
        6. Compile everything into a formal test report referencing the manufacturer’s criteria.<\/li>\n<\/ol>\n

          Nunca deixo de elaborar a documenta\u00e7\u00e3o. Um relat\u00f3rio com fotografias, leituras exatas e os crit\u00e9rios de aceita\u00e7\u00e3o referenciados protege todos os envolvidos no trabalho, caso surja algum lit\u00edgio mais tarde.<\/p>\n

          Perguntas mais frequentes<\/h2>\n

          Quanto tempo devo esperar ap\u00f3s a instala\u00e7\u00e3o do pavimento em PVC para testar a resist\u00eancia da ader\u00eancia?<\/strong>
          \nThis depends on the adhesive manufacturer’s written cure time, which can range from 24 to 72 hours or longer depending on the product.<\/p>\n

          Posso testar a resist\u00eancia da ader\u00eancia sem danificar o pavimento acabado?<\/strong>
          \nSim, atrav\u00e9s de uma avalia\u00e7\u00e3o da ader\u00eancia do tapete antes da instala\u00e7\u00e3o, em conformidade com a norma ASTM F3311. Testar um pavimento j\u00e1 instalado com um ensaio de descolagem ou de tra\u00e7\u00e3o \u00e9 um procedimento destrutivo, pelo que limito essa pr\u00e1tica a \u00e1reas n\u00e3o cr\u00edticas.<\/p>\n

          Qual \u00e9 a diferen\u00e7a entre os testes em laborat\u00f3rio e os testes no local?<\/strong>
          \nOs ensaios laboratoriais, como os realizados de acordo com as normas ASTM D6004 ou D903, s\u00e3o realizados com prepara\u00e7\u00e3o de amostras e equipamento controlados. As verifica\u00e7\u00f5es no local refletem a instala\u00e7\u00e3o real, mas os resultados devem ser interpretados como diagn\u00f3sticos e n\u00e3o como um substituto da norma laboratorial, a menos que seja seguido o procedimento exato.<\/p>\n

          Quem \u00e9 legalmente respons\u00e1vel pela realiza\u00e7\u00e3o de ensaios de resist\u00eancia da argamassa num estaleiro de obras comercial?<\/strong>
          \nThis depends on the contract, but it’s usually the flooring contractor or a third-party inspector engaged by the general contractor or facility manager.<\/p>\n

          Conclus\u00e3o<\/h2>\n

          Matching the right test to the right stage, mat bond before installation, diagnostic checks after, prevents costly rework and keeps every claim backed by the manufacturer’s actual criteria.<\/p>\n

          If you’re planning a PVC flooring installation and want a second opinion on your bond testing plan, adhesive selection, or how to read a failure plane, send me a message. I’m happy to walk through your specific project details.<\/p>","protected":false},"excerpt":{"rendered":"

          There is no single universal field pull-off number for PVC flooring. Bond quality is usually checked through a pre-installation mat bond evaluation and, when needed, a post-installation peel or lift check. Quantitative testing should only follow the method and acceptance criteria set by the project specification or manufacturer. I’ve walked onto too many job sites…<\/p>","protected":false},"author":4,"featured_media":9861,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-9852","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pvc-floor-blog"],"yoast_head":"\nHow Is PVC Flooring Bond Strength Tested On-Site - MF FLOOR<\/title>\n<meta name=\"description\" content=\"No universal PSI value applies to PVC flooring bond tests. 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