Home / Hot-Press of Heat-Activated High Temperature Performance Water-Based Adhesive with Strength Exceeding most of the Wood Base

Hot-Press of Heat-Activated High Temperature Performance Water-Based Adhesive with Strength Exceeding most of the Wood Base

AIT Chemical modified the polymer structure of its water-based adhesives to achieve performance of the best of Urea-and-Phenol Formaldehyde based wood and veneer bonding and far exceeds the traditional solvent-based contact adhesive.

Traditional laminates of veneer to wood and plywood lamination are done with heat-curing hot-press at temperature of 130-150ºC with urea or phenol formaldehyde adhesives that emits environmental and unhealthy formaldehyde during production and at homes in the manufactured furniture. QUICKBOND™ CC4358 is a VOC and solvent free water-based adhesive with same or higher performance in bond strength and water-soak resistance.

CC4358 heat-activated water-based adhesive advantages and application notes:
In the case of heat-activated CC4358 water-based adhesive have the following unparalleled advantages in performance and processing:
•    One-side with pre-applied adhesive only: It can be pre-applied onto one-side of the substrate without having to applied onto both side of substrate. In the case of veneer to composite wood bonding, water-based adhesive can be spray or roller brush onto to veneer surface and allow to dry to form a dry film on veneer. Heat-activated bonding with hot-press can be done any time. 
•    Instant melt-bonding for multiple through-put and energy saving: Heat-activated bonding by directly place onto composite wood surface and pass to traditional hot-press with temperature set at 100ºC to 130ºC for instant melt-bonding without waiting for time for chemical crosslinking. 
•    Creep-resistant bonding at temperature up to 85ºC: The build-in molecular physical structure provides creep-resistant bonding beyond 100ºC as reflected in the attached bond strength vs temperature dependence that clearly showed same and higher performance than chemically crosslinked formaldehyde adhesive. CC4358 readily replacing formaldehyde-based adhesive without losing performance while maintaining healthier workplace and achieve green building initiatives.

QUICKBOND™ CC4358 when heat-activated for melt-bonding at temperature with same heat-press process used for formaldehyde-based adhesive at 100-130ºC but in less than 30 seconds or less than 1/10 times to achieve the ultimate bond strength. More than 500 psi bond strength is maintained even at high temperature of 85ºC to ensure creep-resistant in all weather conditions. That is, for normal applications, the formaldehyde-free water-based heat-activated bonding CC4358 is stronger than the intrinsic strength of wood.

  • Water-soaking resistance for outdoor usage: CC4358 bonded wood structure and furniture can be used for outdoor applications. CC4358 wood-to-wood and veneer-to-wood bonded structures have been tested and proven to withstand long-term water-soaking without delamination with high shear bond strength. Once, the bonded structure is dried, full bond strength is recovered.
  • Wet-bonding for 65-85% bond strength and heat-age at 95-105ºC to achieve full bond strength:  Besides heat-activated bonding method of using CC4358, it can also use more traditional wet-bonding method without hot-press. In this case, bond strength will increase in-situ when heated above ambient. The full bond strength will be achieved upon reaching 85-105ºC. The versatility of heat-activated and wet-bonding manufacturing process provides options that are useful in some special furniture and laminate fabrications when multiple steps and substrates are involved.

Unlike the Formaldehyde-family that required heat curing under hot-press for 20-30 minutes at 150ºC, AIT QUICKBOND™ heat-activated water-based adhesives, CC4358 can be wet-bonded with cold press or roll-lamination to reach 60-80% of the full bond strength of over 2,500psi. Full cured bond strengths are reached when the laminates are exposed to higher usage temperature or using heat-curing process without pressure at temperature at or above its designed heat-activation temperature of 105ºC and above.

The following is a comparative analysis of AIT heat-activated QUICKBOND™ water-based adhesives to traditional Formaldehyde, Polyurethane, solvent-based contact glue, and “white glue”:

CC4358 Water-Based Adhesive in Comparison to Urea and Phenol Formaldehyde (UF, PRF):

  • CC4358 can be heat-activated bonded or wet-bonded with heat-activation to achieve the same or better performance than formaldehyde heat-curing adhesive. High temperature bond strength with “physical crosslinking” provides the same creep resistance on top of water-soaking resistance.
  • The lower heat-press temperature and instant melt-bonding means higher through-put and lower energy costs for production cost saving.
  • CC4358 is 100% water-based adhesive that does not contain or emits formaldehyde. It eliminates workplace safety concerns. The finished bonded furniture meets green building initiatives for wider acceptance for families living environment.
  • Without formaldehyde emission eliminates regulatory pressure for the manufacturing environment. 

Without formaldehyde emission and concerns, worker safety concerns are eliminated. Happier workers produce better products. It also eliminates long-term worker liabilities. 
In all, AIT QUICKBOND™ CC4358 provides same or better bond strength with same creep and water-soaking resistance. That is, same or better performance without formaldehyde risks.

CC4358 Water-Based Adhesive in Comparison to Solvent-Based Adhesives: 

  • CC4358 can be heat-activated bonded or wet-bonded with heat-activation to achieve much higher bond strength than solvent-based adhesives.  
  • CC4358 is 100% water-based adhesive that does not contain or emits solvents and VOC gases. There is no regulatory reporting or pressure for a healthier workplace.
  • Water-based adhesive, unlike solvent-borne adhesives, does not contain solvents and thus not flammable. Fire hazard in workplace in eliminated.
  • Water-based adhesive does not require special storage provisions such explosion proof and other safety concerns.
  • AIT QUICKBOND™ CC4358 provides much better bond strength and creep resistance. It has the same water-soaking resistance to that of solvent-based adhesive. 
    That is, CC4358 water-based adhesive is safer to use and non-flammable to provide a compliant solution to the veneer and wood bonding furniture manufacturing and laminates producers.

CC4358 Water-Based Adhesive in Comparison to Polyurethane-Based (Solvent or Reactive PU) Adhesives: 

  • Polyurethane based adhesives are typically higher in both material and processing costs than water-based adhesives.CC4358 is water-based is lower in adhesive material cost and associated shipping and other costs.    
  • CC4358 is 100% water-based adhesive that does not contain or emits solvents and VOC gases in comparison to solvent-based PU. There is no regulatory reporting or pressure for a healthier workplace.  
  • Water-based adhesive, unlike 2-component reactive PU adhesive are not sensitive to moisture and not subject to more complex mixing procedures and equipment. The costly processing complexity, maintenance, and monitoring associated with reactive PU adhesive systems are not required in CC4358 water-based adhesive.  
  • AIT QUICKBOND™ CC4358 provides same or better bond strength and creep resistance. It has the same water-soaking resistance to that of solvent-based or reactive PU adhesives.  
    That is, CC4358 water-based provides comparable or better performance than polyurethane based adhesive with easier processing and lower material costs.