Matting agent in powder coatings industry

Matting agent (B55, B68)

Description

B-55 and B-68 are the most widely used matting hardener in Epoxy and Hybrid powder coating system; they are the blend of cyclic amidine and salt of polycarboxylic acid with different ratio, which will create a matt and semi-matt gloss effect along with very good flow properties.

Properties

Item

B-68

B-55

Appearance

White fine powder

White fine powder

Melting range

200-230oC

200-230oC

Non volatile

99.0% min.

99.0% min.

Gloss rage

Epoxy: 5-10%

Hybrid: 10~70%

Epoxy: 20~25%

Hybrid: 20~80%

Matting agent DT3329

Descriptions

DT3329 is a chemical with the blend of wax and mercaptobenzothiazole used as the matting agent for powder coating system can be suitable for TGIC or Hybrid system. 

Specification

Appearance

Yellowish granules

Volatile

1.5 % max

Softening point

100-125C

Flash Point

200 C min.

Properties and applications

  1. 1.Can create a system with 30-60% Gloss effect.
  2. 2.Finished coating film with DT3329 has good out door durability.
  3. 3.Dosage is around 5~8% of base resin.
  4. 4.Lower glass effect can be obtain by adding filler.
  5. 5.Extruding temperature: 115~120℃ and Baking condition: 200℃/12min or 190℃/15min.

Matting Agent: B2228

Description

B2228 is made for outdoor powder coatings with good weather durability, in TGIC/polyester system of other similar curing systems. It provides a simple and controllable formulation for outdoor durable powder coating system with the gloss range 8-40 @ 60°angle with good flow.

Properties:

Appearance

Pale Yellow powder

Dosage level

90-100 PHR(based on resin )

Curing schedule

  1. a.15 min@ 190 C
  2. b.12 min@ 200 C

Applications and recommend formulation:

1. For Polyester system96:4(AV:20) and 93:7(AV:35)

2. Add excess TGIC to react with B2228 in the formulation.

3. Benzoin or hydrogenated caster oil can be add as degas agent .

Matting agent B700

Description:

B700 is an organic metallic complex with the effect for producing wrinkle or texture powder coatings. It can be used in epoxy, hybrid or polyester systems, mostly used in epoxy or hybrid coatings.

Technical data:

Appearance

Yellowish powder

Melting range

192-197C

Non Volatile

98.5% min.