1.K-38B good anti-yellowing properties, and dry the fastest: K-37B the best resistance to yellowing, dry speed weightlifting; 

2.K-35B-1 dry faster 

3 should strictly distinguish between the curing agent in different driers in concept, the amount of curing agent addition and subtraction is not the correct way to change the speed of adjustment paint dry, reducing the amount of curing agent, the film will have a bad effect.