200 - 40,000 kilogram
40,001 - 999,999 kilogram
group nameRTV-2 silicone rubber for molds making
Min Order200 kilogram
brand nameHong Ye silicone rubber
modelrtv silicone E630#
payment methodT/T, L/C, Westem Union
update timeTue, 05 Nov 2013 13:08:17 GMT
Available color Translucent RTV silicone mold making rubber
Certifications RoHS.MSDS.SGS ISO9001:2000
Operation way brushing way
Hardness 30 shore A
Curing time 20 - 30min
Mixing proportion of curing agent 1:1
Operating time 20-30min
Viscosity (MPas -25 0C) 30000 ± 5000(part A),5000 ± 500(part B)
Tensile-strength(kgf /cm2 ) 80 ± 5
Min Order200 kilogram
RTV silicone mold making rubber (30 shore A)
RTV silicone mold making rubber is generally named two-components silicone rubber, Part A is a flowable liquid, part B is the curing agent. It features an exceptional fluidity and good operability. The mixing ratio is 1:1,mainly be suitable for making stone molds application.
1.Mainly application of RTV silicone mold making rubber
RTV silicone mold making rubber is a two part silicone rubber and curing with tin catalyst. As with a low viscosity,high tear strength and excellent duplication times,it's widely used for concrete casting,cement products casting,Making silicone rubber molds for artificial stone,concrete crafts,cement crafts,GRC/GPR decorations casting.
2.Features of RTV silicone mold making rubber
a.low viscosity
b.easy operation
c.long shelf life over 12 months
d.high strength and low shrinkage
e.curing at room temperature within 2-4hours
f.high duplication times and no deformation
TDS of RTV silicone mold making rubber E630#
Model | HY-E630# |
Appearance | Translucent |
Mixing Ratio | 1:1 |
Operating time (Mins 25°C) | 30 - 40 |
Curing time (Mins 25°C) | 3-4h |
Hardness (A°) | 30±2 |
Density ( g/cm 3 ) | 1.08 |
Viscosity (CS) (Part A) | 30000 ± 5000 |
Viscosity (CS) (Part B) | 5000 ± 500 |
Viscosity (CS) (After mixed) | 10000 ± 2000 |
Tensile-strength( kgf /cm2 ) | 100 ± 20 |
Tear-strength (kgf /cm2 ) | >15 |
Elongation-break(%) | 500 |
Retractility(%) | ≤0.1 |
3.How to making stone mold with RTV silicone mold making rubber ?
Mixing:
Select a mixing container 4-5 times larger than the total volume of material to be mixed.
Weigh out the selected silicon rubber and catalyst. Stir for several minutes scraping the
sides and bottom of the container carefully to produce a homogeneous mixture. When
using power mixers, avoid excessive speeds, which could entrap large amounts of air or
cause overheating of the mixture, resulting in shorter pot life.
The air entrapped in the mixing step needs to be removed to eliminate voids in the cure
product. This can be done by exposing the material to a vacuum of 10-20 mbar. The
material will expand, crest and reduce to about the original level. Degassing is usually
complete about two minutes after frothing ceases.
Curing:
After mixing the two parts combination, the material will cure at room
temperature. Selection of the Beta will determine cure speed, the work life as well as the
demoulding time.
The system is sensitive to changes in heat and humidity and therefore variations in cure
speed may be seen if one or both variables are changed.
Handling and Safety Material Safety Data Sheets are available upon request.
SHELF LIFE:Twelve (12) months from date of shipment when stored at 24°C in original unopened packages.
PACKAGE:Packed in clean 20kg/pail, 200kg/pail.
Any questions about Silicone Rubber, Leah is at your service.
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