Raw materials in chemical

Normal role

XB****-A carboxyl saturation polyester resin, which is made by the polybasic alcohol and polyatomic acid in the particular condition. Which is suitable to make the powder coating with hardener. It has the character of anti-pinhole, high blare, boiling water resistance, excellent mechanical properties, excellent flow and so on. One thing should be noticed, in the premise of the high price of the epoxy resin, the low acid number of XB ****-A polyester can be used to reduce the cost of the original material and get the satisfied smear through the more use of the polyester and the less use of the epoxy.

Polyester Resin standard

Appearance light yellow granule

Color index ( *0%DMF liquor) <<4

Acid number(mgKOH/) ****6

Softening point (Ring& Ball) ******0

Vitrification temperature (°C) ****6

ICI viscidity(**5°C/Pa.s) *****0

Package and storage

It is packaged by the pp intertexture of the membrane. Each one is *5 kilogram weigh. It can be kept for one year under *0°C in the cool and dry place

Suggested direction

Polyester resin *6(XB****-A)

TGIC *4                         Flow material 5

Brighten powder 0.5             titanium dioxide *0

Barium Sulfate *0               Benzoin 0.3          

The requirement of Solidity **0°C/*5minutes

Powder production technique requirement

Extruding machine BUSS PLK*6           Shim temperature°C: ******0

Screw temperature°C: *0                 Screw machine rotating speed rpm: *0

The size of Powder grain, um, max: **0   The requirement of Solidity:

**0’c**0min***0’c**5min

The role of the paint film

Imbrue thickness, um:*0+/**0         blare*0°(%), >=*2

Accrete(specification 2mm rank):0     Curve test, mm<=6

Trophy trial, mm>=7                   Anti-concussion intension, Kgcm:*0

Rigidity(pencil method), H:**2

Paint film method

electrostatic spraying, KV:****0/Non-oil and non-rust cold steel rolling,mm:0.5