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ARMOUR-CHEM Polyurea Elastomer

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Product Description

THE SPRAY APPLIED, ELASTOMERIC COATING THAT CAN BE PUT INTO SERVICE IN MINUTES.

The technology of Polyurea sprayed elastomers is based on amine - terminated polyether resins, amine chain extenders and isocyanates. It provides a flexible monolithic extremely tough elastomer with good physical properties, high degrees of thermal and hydrolytic stabilities and excellent water and chemical resistance.

Features

Some Recommended Uses

Material Specification

Liquid Components

Solids - by weight 100%
- by volume 100%
V.O.C (volatileorganic carbon) 0
Mix ratio   1:1 by volume
 
Flash point > 200° C
 
Resin: Viscosity @ 25° C 525cps
  SG @ 25° C 1.0 ± 0.02g/cm³
 
Iso: Viscosity @ 25° C 750cps
  SG @ 25° C 1.12 ± 0.02g/cm³
 
Cure times - Gel 5 secs
  - Tack free 10 secs
Recoat   0 - 12 hours
 


Cured Elastomer
Tensile strength 13 MPa
Elongation 300%
100% modulus 8 MPa
Hardness 45 - 50° shore D
Abrasion resistance Taber, H18, 1kg wt, 1000 rev 160mg loss
Coefficient of linear thermal expansion ° C 1.63 x 10 -4

Due to the large diversity of uses for the Polyurea, the material can be supplied in various colours. Specials are available subject to minimum order quantities. It should be noted that Polyurea spray is based on aromatic amines, therefore with certain shades over a period of time, changes in colour and superficial oxidation can occur.

Chemical Resistance Testing ASTM D-1308 Method 3.1.3. Immersion Test

CHEMICAL
EFFECT
% SWELL AREA
UNLEADED PETROL
A / B
5
5% CH3OH in PETROL
C
50
XYLENE
C
30
METHANOL
B
5
ACETONE
B
10
NaOH 0.5N
A
-
NaOH 1N
A
-
BROMINATED WATER
A
-
ACETIC ACID
A
-
H2SO4 5%
A
Pigment Discolouration
H2SO4 10%
A
Pigment Discolouration
H2SO4 50%
B
5% Swell & Discolouration
 

A = No visible damage

B = Little visible damage, slight swelling, discolouration

C = Some effect, swelling, discolouration, cracking

Armour - Chem Hydrolysis @ 80° C