RTV Silicone Rubber for concrete mold making

FOB Price

US $8.89
200 - 1,000 kilogram
US $6.85
1,001 - 9,999 kilogram

group nameRTV-2 silicone rubber for molds making
Min Order200 kilogram
brand nameHong Ye silicone rubber
modelHY-638 silicone
payment methodL/C, T/T, Western Union, paypal
update timeThu, 14 Apr 2016 10:31:00 GMT

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Paramtents

Sample free
Color white/red/yellow/green
Certifications RoHS.MSDS.SGS
Hardness 15-40
Mix Ratio 100;3
Operation Time 30-50 min
Elongation 420
Dynamic Viscosity 27000mPa.s
Tear-strength 26kN/m
Tensile-strength 4.0MPa

Packging & Delivery

Weight1.28kg / kilogram
Min Order200 kilogram

Briefing

1. Good characteristics of easy-operation
2. Ligh viscosity and good flowability
3. Low shrinkage

Detailed

RTV Silicone Rubber for concrete mold making

1. RTV Silicone Rubber for concrete mold making usages

RTV Silicone Rubber for concrete mold makingis primarily intended for mold making of gypsum, concrete, poly resin ,PU resin, unsaturated resin crafts, lighting and candles crafts , plastic toys , stationery gifts crafts industry, large statue, Buddha, relievo furniture, furniture decorative materials, statues Buddha, artifacts copied, building decoration materials, large-scale cement mold, artificial fossils Factory, European buildings, simulation landscapes, animals and plants sculpture, sandstone crafts and so on.

2. RTV Silicone Rubber for concrete mold making main features:

RTV Silicone Rubber for concrete mold making is white or red flowing liquid with general hardness of 22-50 shore A ,after curing. Molding silicon rubber is a kind elastic silicon rubber mold which features with resistance to deformation, high-temperature, acid-alkali and expansion as well as high reproduction times, good tensile strength ,tear strength and elongation.

3. RTV Silicone Rubber for concrete mold making discription

RTV Silicone Rubber for concrete mold makingis a kind of flowable liquid silicone, the quality has nothing to do with the color. It consists of two components. Part A is a flowable liquid silicone rubber, part B is the curing agent. Firstly, after your previous work of dealing with the original model, take some liquid silicone rubber , add 2%-3% curing agent of the amount of silicon, and mix them evenly. Then after vacuum-pumping the mixture, you can pour it into the mold frame. The silicone mold will cured in 2-4 hours.

And more curing agent is needed; contrarily, if molds requiring slower drying and demould, less curing agent is needed

4.Datasheet of RTV Silicone Rubber for concrete mold making :

Model	Color	Mixing ratio (%)	Operation Time (mins)	Demould	Hardness ( A⁰)	Tensile-strength (MPa)	Tear-strength (kN/m)	Dynamic Viscosity	Shrinkage	Elongation
				time				(mPa.s)	rate (%)	(%)
				( hrs)
615#	white	100:3	30-50	4-5	15±2	2.5	16±2	13000±2000	≤0.3	380
620#	white	100:3	30-50	4-5	20±2	2.8	19±2	17000±2000	≤0.3	530
625#	white/translucent	100:3	30-40	3-4	25±2	3.4	24±2	25000±2000	≤0.3	410
630#	white/translucent	100:3	30-40	3-4	30±2	4.0	26±2	27000±2000	≤0.3	420
638#	white/translucent	100:3	30-40	3-4	38±2	4.0	25±2	25000±2000	≤0.3	450
640#	white/translucent	100:3	30-50	4-5	40±2	3.5	21±2	15000±2000	≤0.3	180

5. RTV Silicone Rubber for concrete mold making frequently asked question:

Why does the silicone mould appear to be dry outside but wet inside?

Because molding silicone rubber is a kind of condensation silicone rubber, which get solidified after absorbing moisture from the air. In order to provide a significant shelf-life for the silicon rubber, we will dry out the water in the silicon rubber.

Solution: Add 0.05% water into the silicon rubber and Stir over a low speed briefly when you use it.

6. Certification of RTV Silicone Rubber for concrete mold making

RTV Silicone Rubber for concrete mold making