Home   |   Curing Agent of Powder Coating

Curing Agent of Powder Coating

Matt Hardener MB68

  • Product description: Matt Hardener/Curing Agent MB68 Degussa VESTAGON B68 Matt Hardener)
  • INQUIRY
Description:

Epoxy matting Hardener MB68 is the salts of polycarboxylic acid with cyclic amidine. The hardener, applied in suitable formulations can produce epoxy or Hybrid coatings for matt or semi-matt gloss with very good flowing and properties. Variation between matt and semi-matt surface can be obtained by means of suitable adjustment of formulation.

Information:

Chemical Name

Pyromellitic acid di (2-phenyl-2-imidazoline) (1:2) salt

Alternative Chemical Name

4,5-Dihydro-2-phenyl-1H-imidazole -1,2,4,5-benzenetetracarboxylate

Product Code

Curing Agent MB68/Matt Hardener MB55

Chemical Structure

Molecular Formula

C28H26N4O8

CAS No.

54553-91-2

EINECS No.

259-226-5

Molecular Weight

516.528040[g/mol]

Technical data:

Curing Agent/Matt Hardener MB68

Appearance

White powder

Melting range

220~228

Purity

99%

Application:

The hardener may be applied both in pure epoxy and hybrid (epoxy-polyester) resin powder coatings. Epoxy coatings of gloss range level ranging from 15%~30% and hybrid coatings with gloss levels ranging from 20%~60% ( or greater ) may easily be formulated by the use of MB55.Coatings produced with MB55 is characterized by color and gloss stability under normal baking conditions. Hybrid coating with matt or semi-matt gloss may be achieved by replacing some of the polyester in the formulation with an equivalent quantity of MB55.

The following gives the formulations of MB55 for matt epoxy coatings.

Gloss

Formulation

50-60

Epoxy(604)

250g

Polyester

50

MB55

10g

BaSo4

165g

WD88

5g

Benzoin

2.5g

carbon black

3g

701

5g

* Epoxy (604) is same as Epoxy E-12

* Ployester: Acid value 30-35KOHg/mg

* WD88 is a leveling agent with silica carrier available from Huangshan Wellde Industry Co.,Ltd. It’s noted that the achievement of matt effect and relevant properties of the film is connected with full cured of coatings.

Claim:Above information is offered as a recommendation only. The suitability of MB55 should be determined by evaluation in your finished application.

Object temperature

Time

180

20-25min

190

12-15min

200

10-12min

Storage and Packaging

The product is delivered in flat PE-bags, net weight 20kg or 25kg. If kept cool (0-40) and dry in closed bags the product can be stored for at least 1 year in accordance to the specification. All opened bags should be carefully resealed immediately after use.

This information and all further technical advice is based on our present knowledge and experience. However, it implies no liability or other legal responsibility on our part, including with regard to existing third-part intellectual property rights, especially patent rights. In particular, no warranty, whether express or implied, or guarantee of product properties in the legal sense is intended or implied. We reserve the right to make any changes according to technological progress or further developments. The customer is not released from the obligation to conduct careful inspection and testing of incoming goods. Performance of the product described herein should be verified by testing, which should be carried our only by qualified experts in the sole responsibility of a customer. Reference to trade names used by other companies is neither a recommendation, nor does it imply that similar products could not be used.

Contact Us

Contact: Sand Zhou

Phone: 86-13335692211

Tel: 86-559-6510095

Add: 15# WeiYi Road,Circle Economy Park, Shexian, Huangshan, Anhui,China