JONCRYL® 915 is an innovative acrylic oligomer for high solids polyurethane coatings featuring fast cure times. The equivalent weight of this product has been maximized to provide the lowest isocyanate demand possible while maintaining good crosslink density. High solids coatings that are as low as 2.8 pounds per gallon of VOC can be formulated to spray by conventional or airless equipment.

JONCRYL 915 displays outstanding viscosity characteristics without the addition of low molecular weight reactive diluents. It should be considered as a candidate for high performance maintenance and transportation coatings as a replacement for conventional solids polyurethane finishes.

This product is recommended for applications such as:

• Interior/exterior general metal coating applications
• Automotive refinish coating applications
• Interior/exterior concrete coating applications

Features & Benefits

• Low VOC
• Good durability

Performance Data

Cure/Dry Characteristics

The following graph illustrates the dry times/cure rates of a typical white topcoat formula based on JONCRYL 915. Due to the increased reactivity of this product, catalysts are not normally used. If increased reactivity is desired, typical urethane catalysts such as dibutyltin dilaurate can be used. If a catalyst is used, the dry time and the pot life will both be reduced. The pot life of this system will normally be between 2 – 3 hours when pot life is defined as the time to double an initial viscosity of 250 cps.

Properties

*These typical values should not be interpreted as specifications.