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Adhesives/Binder Resins

Adhesives for wood composites Wood Adhesives

We supply the wood composites industry with an extensive line of adhesives including plywood adhesives; oriented strand board (OSB) resins; hardboard resins; particleboard & medium density fiberboard (MDF) resins; and laminated veneer lumber (LVL) adhesives.

  • Plywood Adhesives - GP Chemicals manufactures both neat resins ready-to-use mixed adhesives. Neat GP® liquid phenol-formaldehyde (PF) resins are available for mills that prefer in-plant mixing of their own adhesive system. RESI-MIX® ready-to-use adhesives combine neat liquid PF resins with extenders and fillers. These adhesive systems work across a broad range of assembly conditions and can be customized to meet product requirements and mill conditions. Patented RESI-MIX Ultra and RESI-BOND® Ultra resin systems give plywood manufacturers the flexibility to glue veneers with a wide range of moisture content, resulting in less waste from rejects, without sacrificing performance. New RESI-BOOST™ resin provides operational savings in terms of lower press temperatures, faster throughput and improved glue spreads while maintaining bond quality.
  • OSB Resins - RESI-STRAN® liquid phenol-formaldehyde (PF) adhesives and WOODWELD® powder PF adhesives are available for this application. RESI-STRAN adhesives are available in face and core resin formulations and can be customized for resin cure speed. WOODWELD resins are also offered in both face and core formulations and typically allow for lower resin application rates.
  • LVL Adhesives - RESI-MIX® ready-to-use mixed adhesives are formulated specifically for LVL. ASTM D2559 and CSA0112.6 certified products are available as well as adhesive systems possessing fast tack development for LVL lay-up lines that employ a prepress operation. The products can be custom-formulated with appropriate extenders to meet challenging mill conditions.
  • Hardboard Resins – GP Chemicals manufacturers a line of phenol-formaldehyde resins and catalysts for use in hardboard applications.
  • Particleboard & MDF Resins – LEAF® low-emission resins for use in particleboard and MDF are offered by GP Chemicals. LEAF C2 resins can be urea-formaldehyde or melamine-urea-formaldehyde and can contribute to compliance with CARB Phase 2. LEAF GB resins may be melamine-formaldehyde, melamine-urea-formaldehyde or phenol-formaldehyde based and can contribute toward meeting various green building standards.
  • Adhesives and Sealants

    GP Chemicals manufactures NovaRes® tall oil rosin ester, a specialty pine-based derivative product for adhesives used in book binding, pressure-sensitive tapes and labels. NovaRes® is used for tackifying hot melt and other adhesives. Advantages include broad polymer compatibility. Our LYTOR® tall oil rosin is derived from quality crude tall oil and is an excellent chemical intermediate for a wide variety of markets and applications, including adhesives and sealants.

    In addition to these pine-based products for the general adhesives and sealants industry, many of our phenol-formaldehyde and urea-formaldehyde resins and modifiers are used for grit adhesion to various substrates for industrial applications including scrubbing pads and coated abrasives.

    GP Chemicals also produces a line of triazone products that can extend base polymers, reducing costs while maintaining performance of the end product.

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Products

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Product Potential Solutions/Attributes Description

extender, base polymer reduction, cost reduction

GP® 4864 triazone resin is used in a variety of industries as an extender, solvent or reactive diluent with melamine-formaldehyde, phenol-formaldehyde, melamine-urea-formaldehyde ...

Reduces overpenetration in high moisture content veneers, reduces glue spreads, reduces press cyce times

Patented, innovative Resi-Boost™ resin improves the panel-making process. It reduces the threat of over-penetration in high moisture content veneers leaving more resin ...

Gluing veneers with a wide range of moisture content

New patented RESI-MIX® Ultra and RESI-BOND® Ultra resin systems give plywood manufacturers the flexibility to glue veneers with a wide range of ...

Lower freezepoint than 50% caustic solutions, conditioning agent

We offer a log conditioning/wetting product formulated to be used in hot water vats for pH adjustment. RESI-VAT® 5311 has a ...

Grain bonding, water tolerance, light color

Urea-formaldehyde and phenol-formaldehyde resins are used for grit adhesion to various substrates in coated abrasives, bonded abrasives and wheels, and scrub pads.

Alkaline cure

A family of neat wood adhesives resins used for in-plant mixing. They can be adjusted to accommodate the differences in customers' processes. ...

Alkaline to Acidic cure

Available for the manufacture of moisture-resistant particleboard, hardboard and medium density fiberboard (MDF). These products can aid in complying with:

  • California Air ...

Thermoplastic, liquid

Adhesive resins for the manufacture of phenolic particleboard, medium density fiberboard and hardboard. These products can aid in complying with:

  • California Air ...

Neutral to acidic cure, may lower emissions

A variety of scavenger, buffering and catalyst technologies are employed with liquid urea-formaldehyde resins for composite panel production. Some of these ...

Neutral to Acidic cure

LEAF® C2 resins are low-emission adhesives that can contribute to compliance with CARB Phase 2 and some green building standards.

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