food grade silicone moulding rubbers

FOB Price

US $18.00
100 - 40,000 kilogram
US $6.60
40,001 - 999,999 kilogram

group nameRTV-2 silicone rubber for molds making
Min Order100 kilogram
brand nameHong Ye silicone rubber
modelhy625
payment methodT/T, L/C, Westem Union
update timeFri, 08 Nov 2013 16:00:12 GMT

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Paramtents

Application Mold making silicone rubber
Shelf life 12 months
Appearance Liquid
Molding method Pouring / brushing
Mixing ratio 100:5 / 100:4/ 100:3
Sample Free
Package Vacuum packing
Certificate FDA,SGS, RoHS, MSDS, ISO9001:2000
Payment T/T 100% in advance, L/C, Western union
Purity 100%

Packging & Delivery

Min Order100 kilogram

Briefing

food grade silicone moulding rubbers features:1) For mold making, 2) high tensile, tear-strength.etc.3) low shrinkage 4)

Detailed

food grade silicone moulding rubbers

Model	Color	Mixing ratio (%)	Pot life (mins)	Demould time ( h)	Hardness ( A⁰)	Tensile-strength (kgf/cm²)	Tear-strength (kgf/cm)	Viscosity (cps)	Shrinkage rate (%)	Elongation (%)
E620#	translucent	1:1/10:1	30	4-6	20	≥55	≥ 28	6000	≤0.1%	680%

Model

Color

Mixing ratio (%)

Pot life (mins)

Demould

time

( h)

Hardness ( A⁰)

Tensile-strength (kgf/cm²)

Tear-strength (kgf/cm)

Viscosity

(cps)

Shrinkage

rate (%)

Elongation

(%)

E620#

translucent

1:1/10:1

4-6

≥55

≥ 28

6000

≤0.1%

680%

Addition Cure silicone

These food grade silicone moulding rubbers use Addition cure technology with the following features.

High tensile and tear strength
Cure speed can be accelerated using heat
Low shrinkage, below 0.1%
Tough rubber
Good abrasion resistance
Platinum catalyst can be poisoned (*see note below)

*The platinum catalyst used in all addition cures is susceptible to attack from certain chemical compounds which in turn will lead to inhibition of cure and results in a partially cured product. Bringing the uncured material into contact with the following chemical compounds should be avoided during the manufacturing process: nitrogen, sulphur, phosphorus, arsenic, organotin catalysts, PVC stabilizers, epoxy resin catalysts, sulphur vulcanised rubbers and condensation cure silicone rubbers.

Catalyst

As already explained, addition cure rubbers use a platinum catalyst and the A and B parts are manufactured together as a balanced kit. For this reason only use the A and B parts from the same kit and always weigh out and mix to the correct ratio. The catalyst can be contained in either the A or B part of the system, as this may vary from supplier to supplier, it is important to check first if using a new material with automated dispensing equipment. We strongly advise purging and cleaning equipment before changing to a new material to avoid cure taking place in the pump and pipe work.

food grade silicone moulding rubbers