NTA knows that the building code may not always require certification of compliance, but there are good reasons to undergo adhesive performance testing. If you manufacture an adhesive, an NTA certification allows you to back up your marketing claims with independent third party verification of code compliance.

If you’re manufacturing something that uses an adhesive, you still need to make sure all of its component materials are in compliance with current codes by participating in a certification program. For example, can your adhesive stand up to fire? What is its humidity tolerance or shear strength? Or maybe you’re trying to decide which adhesive to use in your product. NTA offers comparative testing to help you answer these and other questions.

ASTM, one of the largest voluntary standards developing organizations in the world, provides a wealth of standards that can be used in the evaluation and testing of adhesives. These standards:

  • Help identify properties of content (volatile or non-volatile), which include viscosity, adhesion, shear strength, and shear modulus.
  • Help identify adhesive bond or joint mechanical properties, which include strength, creep, fracture, and fatigue.
  • Help evaluate the different effects that environmental factors have on adhesive bonds and joints.
  • Are instrumental in determining various applications of adhesives, such as sealing materials and materials used in lumber products and floor systems.

What NTA can do

NTA offers a single-source solution for all testing, inspection, certification, evaluation, and follow-up services. Having all the required services performed by a single vendor saves you a significant amount of time and money.

NTA is accredited under ISO 17025 to test (Midwest/Southwest), ISO/IEC 17020 to inspect, and ISO/IEC 17065 to certify adhesives for building materials, manufactured homes and modular factory-built construction.

Whether you need to test an adhesive for use in structural insulated panels (SIPs), walls (including shear walls), or composite and engineered lumber, NTA has a rigorous test process to ensure your products get certified to the latest building code standards.

NTA conducts adhesives tests according to several different methods, including but not limited to:

  • ASTM C557: Standard specification for adhesives for fastening gypsum wallboard to wood framing
  • ASTM D903: Standard test method for peel or stripping strength of adhesive bonds
  • ASTM D905: Standard test method for strength properties of adhesive bonds in shear by compression loading
  • ASTM D1002: Standard test method for apparent shear strength of single-lap-joint adhesively bonded metal specimens by tension lading (metal-to-metal)
  • ASTM D1084: Standard test methods for the viscosity of adhesives (Method A only)
  • ASTM D1101: Standard test methods for the integrity of adhesive joints in structural laminated wood products for exterior use
  • ASTM D2294: Standard test method for creep properties of adhesives in shear by tension loading (metal-to-metal)
  • ASTM D2559: Standard specification for adhesives for bonded structural wood products for use under exterior exposure conditions
  • ASTM D3930: Standard specification for adhesives for wood-based material for the construction of manufactured homes
  • ASTM D4317: Standard specification for polyvinyl acetate-based emulsion adhesives (except Sections 9.1.2, 9.1.3, 9.1.4, 10.3.1,, and
  • AFG-01: Performance specifications for adhesives used for field-gluing plywood to wood framing (requires that adhesives applied at the job site be sunlight resistant and able to fill gaps. Adhesives are subject to adverse weather conditions including moisture, sunlight and fluctuating temperature conditions.)
  • ICC-ES ACO5: Acceptance Criteria for Sandwich Panel Adhesives
  • Structural assembly testing in HUD manufactured housing

For more information about Adhesive Performance Testing contact us.

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