liquid silicone for concrete casting molds

FOB Price

US $8.25
200 - 40,000 kilogram
US $6.20
40,001 - 999,999 kilogram

group nameRTV-2 silicone rubber for molds making
Min Order200 kilogram
brand nameHong Ye silicone rubber
model630# Liquid silicone rubber
payment methodT/T, L/C, Westem Union
update timeSat, 09 Nov 2013 12:51:27 GMT

contact supplier

Paramtents

Sample Free
Certification: SGS,MSDS,RoHS
Hardness: 25-40 shore A
Mixing Ratio: 2-3%
Shelf life 12 month
Operating time (hour 25 0C ) 0.5
Elongation-break(%) 180-450
EINECS No: 39100000
Curing time(hour) 3-5
Curing agent: 3%for free charged

Packging & Delivery

Min Order200 kilogram

Briefing

1. Resistance to deformation, high-temperature
2. High reproduction times
3. Good tensile strength
4. Exceptional fluidity

Detailed

liquid silicone for concrete casting molds

1. Application for liquid silicone for concrete casting molds:

Liquid Silicone Rubber is primarily intended for poly resin crafts, PU crafts, PU resin crafts, gypsum crafts, unsaturated resin crafts, lighting and candles crafts, plastic toy, stationery gifts crafts industry, a large statue Buddha, relievo furniture, furniture decorative materials, statues Buddha, artifacts copied, building decoration materials, large-scale cement mold, artificial fossils Factory, Europe component factory, simulation landscapes, animals and plants sculpture, sandstone crafts and so on.

liquid silicone for concrete casting molds

2. Instruction for liquid silicone for concrete casting molds:

Add curing agent of 2%-3% at the room temperature, the silicone rubber is still operational within 30 minutes, and in 2-3 hours.

1. Adding curing agent 1%, the silicone rubber can still be operated within 2.5 hours and can be Demoulded after 6-8 hours.

2. Adding curing agent 2%, the silicone rubber can still be operated within 50 minutes to 1 hour and can Be demoulded after 2-3 hours.

3. Adding curing agent 3%, the silicone rubber can still be operated within 28 - 30 minutes and can bedemoulded after 1.5-2 hours.

4. Adding curing agent 4%, the silicone rubber can still be operated within 10 - 15 minutes and can be demoulded after 1 -1.5 hours.

liquid silicone for concrete casting molds

3.Standand datasheet of liquid silicone for concrete casting molds:

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)
625#	white/translucent	100;3	30-40	3 to 4	25±2	3.4	24±2	25000±2000	≤0.3	410
630#	white/translucent	100;3	30-40	3 to 4	30±2	4	26±2	27000±2000	≤0.3	420
638#	white/translucent	100;3	30-40	3 to 4	38±2	4	25±2	25000±2000	≤0.3	450
640#	white/translucent	100;3	30-50	4 to 5	40±2	3.5	21±2	15000±2000	≤0.3	180

liquid silicone for concrete casting molds

4.Steps of liquid silicone for concrete casting molds:

Step One: Take 100g of part A and add 2g of part B and mix the silicone rubber and curing agent evenly.

Notes: Moulding silicon rubber is a kind of flowing liquid and it contains two parts. Part A is a kind of white flowing liquid and part B is the curing agent.

Step Two: vacuum pumping

Without exception, this step takes less than 10 minutes.

Note: The time for vacuum-pumping should be less than 3—5 mins , otherwise, once the silicone rubber has cross-link reaction during vacuumizing, it will not be operated.

Step Three: Brushing cast & Perfusion Molding operation

5.FAQ of liquid silicone for concrete casting molds:

Why does the liquid silicone rubber for gpusm products' mold making mold get burnt out?

The unsaturated resin produces great heat when added the curing agent. So you must demould the product within 3 minutes to avoid this problem.

6.Certifications of liquid silicone for concrete casting molds:

7.Company profile:

We are manufacturer specializing in molding silicone rubber, mold duplicating rubber for resin craft makers, special silicon for manual molding, shoe mold rubber, pad printing silicone, encapsulants and potting compound,addition cure liquid silicone,baby nipple silicone rubber ,lifecasting,food grade silicone rubber, trademark silicone rubber, HTV silicone rubber, lead-zinc alloy crafts silicone rubber, hot stamping silicone plate, hot stamping silicone roller, gross rubber, RTV-2 silicone rubber, silicone molds, silicone products,etc.