Hardeners for footwear adhesives

Product Description: is a water reducible, hydrophilically modified aliphatic polyisocyanate designed specifically as hardener for Gaia footwear polyurethane dispersion (PUD) in 2 pack footwear adhesives (shoe adhesives), to provide excellent film properties: high cross-link functionality, excellent water dispersibility, yellowing resistance, and zero VOC (environmentally friendly).        

Uses:  as hardener to cross link with hydroxy or amno terminated for water based (waterborne) resins or dispersion in 2 pack waterborne coating systems for plastic, wood and metal surfaces.  Gaia PUH 161 is exceptionally suitable for use with our Gaia PUD series, especially for water based 2 pack adhesives for shoe manufacturing by the cement or vulcanized process.  When combined with our Gaia PUD 501, 502, 503 and 504, the adhesives’ bonding strength, as well as heat and hydrolysis resistance will be greatly increased.   

Product General Properties*:

Appearance & Physical State: clear, colorless to pale, moderately viscous liquid

Solid content: 100 % (Non-volatile)

NCO content:  18 – 19 % (w/w)

Viscosity (25ºC): 2000 - 4000 cP

Monomer content: < 0.2%

Flash point:  160 ^oC

Open time: 4 hours

Stability: stable under recommended storage conditions. 

Storage Condition: store in closed original container in cool (5 to 35^oC) and well ventilation areas away from direct sunlight. Do not freeze the product. Do not leave the product uncovered for extended periods of time; immediately tightly close the cap after each material transfer. When stored properly, the resin has a shelf life of at least 6 months from the date of manufacture.

Packing:  20 kg in tightly cap aluminum container.  

* Only as guidance; exact specifications refer to COA shipped with the product.