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Cobalt Octoate (CPA)

Description:

CPA stands for Colorless Polyester Accelerator. The CPA Grade, is used in the curing of polyester and vinyl ester resins with methyl ethyl ketone peroxide (MEKP) type catalysts. Promoters are also called accelerators. They can be added to the resin by the supplier, in which case the resin is said to be pre-promoted.

Alternatively, the manufacturer prior to adding catalyst to the resin can add promoters. The purpose of cobalt-based promoters is to speed up the curing reaction of polyester and vinyl ester resins and allow them to cure at room temperature. The cobalt-based promoter helps the catalyst to start the chemical reaction between the resin and styrene monomer and form a cured solid.

Product Code

Chemical Name

Metal Content %

Color

Appearance

IS-DR-Co-10

Cobalt Octoate 10%

9.8-10.2

Dark Violet

Clear Liquid

IS-DR-Co-8

Cobalt Octoate 8%

7.8-8.2

Dark Violet

Clear Liquid

Grade

Industrial

EINECS Number

205-250-6

CAS Number

136-52-7

Shelf Life

1 year

Num.

Issue

Code

Topic

1

Metal Content

ASTM D2373-05

Standard Test Method for Determination of Cobalt in Paint Driers by EDTA Method

2

Color

ASTM D1544-04

Standard Test Method for Color of Transparent Liquids (Gardner Color Scale)

3

Nonvolatile Content

ASTM D1644-01

Standard Test Methods for Nonvolatile Content of Varnishes

4

Viscosity

ASTM D1200-10

Standard Test Method for Viscosity by Ford Cup

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