Acid Catalysts > NACURE & K-CURE

Blocked and unblocked acid catalysts for amino reactions

Unblocked Blocked Acid

Unblocked Acid Catalysts

Product	% Active	Min. Cure °C	System Type	Attributes
DNNDSA
NACURE 155	55	RT	SB	General purpose catalyst. Excellent water, detergent and salt spray.
DNNSA
NACURE 1051	50	125	SB	Best water & corrosion resistance. For high temperature applications.
DDBSA
NACURE 5076	55	RT	SB / WB	Complies with FDA 21 CFR, Sec. 175.300 (b) (3) xii & xiii (a&b).
P-TSA & Mixed Acids
K-CURE 1040	40	RT	SB / WB	Highest Gloss. Fast Cure. Excellent weathering and exterior durability.
K-CURE 1040W	40	RT	WB	Excellent gloss and cure rate. Non-flammable for waterborne applications.
K-CURE 129B	50	RT	SB / WB	Fastest Cure. Excellent for wood and paper coating systems.
Phosphates
NACURE XC-235	75	RT	SB	Particularly effective with partially alkylated melamines for automotive topcoats and primers, general industrials, and wood coatings.
NACURE 4054	50	RT	SB	Excellent adhesion. Siloxane crosslinking.
NACURE 4000	100	RT	SB	Broad solubility and excellent adhesion. Good package stability.

Blocked Acid Catalysts

Product	% Active	Min. Cure °C	System Type	Attributes
DNNDSA
NACURE X49-110	25	90	SB / WB	Best overall properties. Excellent water and corrosion resistance, and adhesion.
NACURE 3525	25	120	SB / WB	Better solubility than X49-110 and slower curing. Good salt spray resistance and adhesion.
NACURE 3327	25	107	SB / WB	Better solubility than other amine blocked DSA catalysts.
DNNSA
NACURE 1323	21	150	SB	High temperature applications. Excellent solubility in aromatic and aliphatic solvents.
NACURE 1419	30	150	SB	Electrostatic spray. High bake applications for water, detergent, and salt spray resistance.
NACURE 1557	25	150	SB	Resolves solvent popping in thick films. Excellent humidity and detergent resistance.
NACURE 1953	25	150	SB	High bake amino crosslinked systems such as coil coatings and metal decorating.
DDBSA
NACURE 5225	25	120	SB / WB	Best solubility in high solids enamels. Good solubility in aromatic solvents.
NACURE 5414	25	130	SB	Excellent electrostatic spray (non-aqueous). Good intercoat adhesion. Blister resistance.
NACURE 5528	25	120	SB / WB	Broad solubility and excellent color stability.
NACURE 5925	25	120	SB / WB	Complies with FDA 21 CFR, Sec. 175.300 (b) (3) xii & xiii (a&b).
NACURE XC-181	25	140	SB	Excellent gloss and cure rate. Recommended for SB coil and metal decorating. deoratirating.
NACURE XP-379	25	120	WB	Complies with Synoptic 7 for contact with food. Excellent solubility and exterior durability.
P-TSA & Mixed Acids
NACURE 2500	26	80	SB / WB	Low temperature cure. Excellent stability.
NACURE 2107	25	90	SB / WB	Good metal mark resistance.
NACURE 2501	25	80	SB / WB	Slightly higher resistivity than 2500. Better ketone solubility.
NACURE 2530	25	80	SB / WB	Low temperature cure. Reduced risk of yellowing or wrinkling.
NACURE 2547	25	90	WB	Easy incopration into aqueous systems.
NACURE 2558	25	90	SB / WB	Effective in controlling wrinkling, popping and blistering in HS systems.
NACURE 8924	25	RT	WB	Balance of rapid cure/stability in waterborne formulations.
Phosphates
NACURE 4167	25	80	SB / WB	Blocked phosphate for high NH/polymeric melamines. Siloxane crosslinking.
NACURE 4575	25	100	SB	High gloss. Superb storage stability with polymeric amino resins.