RTV Mold Making Silicone (Addition-cure type)

FOB Price

US $17.50
200 - 40,000 kilogram
US $10.50
40,001 - 999,999 kilogram

group nameAddition cure silicone rubber
Min Order200 kilogram
brand nameHong Ye silicone rubber
modelHY-E625# Silicone rubber
payment methodT/T, L/C, Westem Union
update timeFri, 08 Nov 2013 16:49:04 GMT

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Paramtents

Good fluidity Excellent tear strength

Packging & Delivery

Min Order200 kilogram

Briefing

1. Good fluidity and excellent operation.
2. Good resistance to weather, temperature, aging, acid..
3. Excellent tear strength

Detailed

RTV Mold Making Silicone (Addition-cure type)

Description :

RTV mold making addition silicone are generally named as two-part addition silicone rubber that vulcanises at room temperature.Part A is a flowable liquid, part B is the curing agent(platinum catalyst). It features an exceptional fluidity ,good operability,excellent physical properties and very low shrinkage. The mixing ratio between Part A and Part B can be 10:1 or 1:1.

Main application:

Rapid prototyping (urethane casting/silicone tooling/vacuum casting)
Concrete moulding
PU resin casting
General Mouldmaking
Superior manual mold designs
Cake/Chocolate molds

Main properties:

almost nil shrinkage
high chemical resistance to aggressive components of some types of resins
good tear strength (this feature ensures higher resistance to wearing and shearing)
high degree of precision in reproduction
high dimensional stability over time and non-deformability
high resistance to high temperatures and ageing (resit to -60-200°C)
excellent non-stick effect
environmental, odorless and nontoxic

RTV-2 Addition silicone rubber standard datasheet(25°C)

(The mixing ratio of part A and part B can be adjusted to 1:1or 10:1)

Product	E-615	E-620	E-625	E-630	E-642
Appearance	Translucent	Translucent	Translucent	Translucent	Translucent
Hardness(shore A)	15±2	20±2	25±2	30±2	42±2
Mix ratio(A:B)	1:1	1:1	1:1	1:1	10:1
Viscocity Part A(mPa.s)	22000±2000	23000±2000	27000±2000	25000±2000	55000±2000
Viscocity Part B(mPa.s)	1900±500	1900±500	1800±500	2400±500	150±50
Tensile strength (MPa)	5.2	5.7	6.7	5.5	7.6
Tear-strength (kN/m)	25	26	23	24	22
Elongation(%)	569	581	480	410	450
Density	1.05	1.05	1.07	1.13	1.14
Pot life/working time (mins)	30-40	30-40	30-40	30-40	30-40
Curing time/setting time (hrs)	3-4hrs(25°C) 120-30mins(60°C)	3-4hrs(25°C) 120-30mins(60°C)	3-4hrs(25°C) 120-30mins(60°C)	3-4hrs(25°C) 20-30mins(60°C)	6-8hrs(25°C) 130-50mins(60°C)
Shrinkage rate (%)	0.1	0.1	0.1	0.1	0.1

Notice:

All above addition silicone is forbidden to mix with organic compounds of condensation cure silicone rubber,otherwise, the silicone rubber will not cure, and also should not mix with organic compounds containing S, P, N as well as metallic salt of organic acids. It also will cause this product cure uncompletely or not cure.

RTV Mold Making Silicone (Addition-cure type)