Catalyst Tp50 for Pure Epoxy Polyester-Epoxy, Carboxyl Acrylic-Epoxy Powder Caotings

CATALYST TP50 FOR POWDER COATING
GENERAL DEscriptION
TP50 is a 50% active imidazole catalyst specifically developed to facilitate dispersion and avoid hot spots of the catalyst during powder manufacture. The additive is used to accelerate the cure of powder coatings based on the carboxyl-epoxy reaction, or for pure epoxy systems as well. Typical systems include hybrids such as polyester-epoxy, carboxyl acrylic-epoxy and polyesters cured by GMA-functional acrylics. Polyester-TGIC and polyester-PT-910 reactions can also be accelerated. TP50 can reduce the cure temperature of a particular system or shorten the required bake time at a given cure temperature without sacrificing DOI or flow and leveling properties. The product may also reduce star cracking on impact.
Due to the special composition of TP50 , it is believed that this product provides some charging characteristics for tribo powder coatings. The reaction response of TP50 is similar to propyl imidazole based products, but slower in rate and less yellowing than 2-methyl imidazole based catalysts.
Recommended usage level of TP50 is 0.3-0.6% on total formula weight. Each application should be tested to determine the optimum catalyst level to achieve the desired cure time and coating properties.
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TYPICAL PROPERTIES** Not to be used for specification purposes
AppearanceTan to Brown Granules% Active48 - 52%Specific Gravity (25/25)0.85 - 1.05
REGULATORY LISTINGS
The components of this material are either listed or exempt from listing due to polymer exemption criteria for the following chemical inventory listings: EINECS (Europe), ENCS (Japan), IECSC (China), PICCS (Philippines), TSCA (USA)PACKAGING (NET WEIGHT)
25 kg in fiberboard box with polyolefin linerPRODUCT AVAILABILITY
This product is commercially available and may require lead time. STORAGE AND HANDLING
Store in a dry, cool area and avoid excessive heat. Shelf life of unopened containers is one year from date of shipment. See SDS for additional information.