Non-Dissolved in water DP303(HM3) liquid coating cross -linking agent(Amino Resin)

【Specification】

Appearance: Clear,transparent liquid

Specific weight（g/ml): 1.2

Non-volatile matter(105℃,1.5h): 98.0% min

Viscosity(25℃ rotation viscosity) : 1500-5000 mpa.s

Free formaldehyde(by weight): 0.5% max

【Application】

DP303 has advantages as economical, fast catalyzed cure, solvent-free, excellent stability, Wide compatibility and solubility with various kinds of resins, excellent hardness-film flexibility. 3crosslinking agent is a commercial grade of Hexamethoxymethylmelamine(HMMM) which supplied in liquid form.

It is a versatile crosslinking agent for a wide range of polymeric materials, both organo-soluble and water-borne.

DP303 is soluble in most commonly used organic solvent but solubility in water is limited-when blended with most other water-reduciable resins, tolerates dilution in water.

The polymeric materials should contain either hydroxyl or amide groups. The reaction of DP303 with hydroxyl, carboxyl and amide functionalities on other polymers is typically catalyzed with strong acid because of its high extent of alkylation.

The polymeric materials would include alkyds, polyesters, acrylic, epoxy, urethane, and cellulosics. DP303 is a very effective crosslinking agent because of its high functionality and low tendency to self condensation.

In particular, it can provide films with high flexibility when used with polyesters.

Usage:

1,Automotive finishes

2,Container coatings

3,General metals finishes

4,High solids finishes

5,Water borne finishes

6,Coil coatings

Competitive Advantage:

1,Excellent hardness-film flexibility

2,Fast catalyzed cure response

3,Economical

4,Solvent-free

5,Wide compatibility and solubility

6,Excellent stability

【Packing &Storage】

* N.W.140KG/Plastic drum, closed tightly; shelf life in room temperature is one year.

* N.W.230KG/Iron drum.