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
modelHY-620 liquid silicone
payment methodT/T, L/C, Westem Union
update timeTue, 05 Nov 2013 12:25:00 GMT
Appearance Liquid
Application Mold Making Silicone Rubber
Curing agent 4% free of charged
Molding method Pouring , brushing
Package vacuumed packing
Shelf life 12 months
MOQ 100KGS
Sample Free
Certificates SGS, RoHS, MSDS, FDA, ISO, REACH, UL
Min Order200 kilogram
Applications of mould making silicon rubber
Casting material -- liquid silicone is suitable for industries such as toys, gifts, decoration, plate engrave, human replica, art crafts, resin crafts, poly resin crafts, unsaturated resin crafts, candle crafts, plastic crafts, stationeries, plaster crafts and Buddhist statue crafts.
Casting material -- liquid silicone Series
RTV-2 Room Temperature Silicon Rubber
Model Code--HY-620
Usage: Silicon rubber for PU/poly resin products, unsaturated resin products, plaster products, candles and gypsums crafts, toys, soap molds, statues,casting molds making, etc.
Model | 620# |
Appearance | white |
Mixing Ratio (%) | 3~4% |
Operating time (mins 25 0C ) | 30~50 |
Curing time(hours 25 0C) | 3~6 |
Hardness (A°) | 20±2 |
Density ( g/cm 3 ) | 1.08 |
Viscosity (Mpas -25 0C) | 13000±3000 |
Tensile-strength(kgf /cm2 ) | ≥35 |
Tear-strength (kgf /cm ) | ≥15 |
Elongation-break(%) | ≥ 425 |
Retractility(%) | ≤0.25 |
Mixing Ratio for Silicon Rubber & Curing Agent and the reaction time (Under room-temperature-25 °C )
1,Added with 2% of curing agent, silicon can still flow within 2.5 hours, mold can be released in 8-10 hours.
2,Added with 3% of curing agent, silicon can still flow within 1.1 to 1.2 hours, mold can be released in 6-8 hours.
3,Added with 4% of curing agent, silicon can still flow within 55-60 minutes, mold can be released in 4-6 hours.
4,Added with 5% of curing agent, silicon can still flow wtithin 45-50 minutes, mold can be released in ~4 hours.
Technical Guidelines of casting material -- liquid silicone
1. Stir the base (Part A) well beofre use (except when depending on machine ).
2. Shake the catalyst container (Part B) well before use.
3. This is a 100 Part A to 5 Part B mixing ratio by weight.Weigh the desire amount of base into a clean mixing container.
4. Weight the proper amount of catalyst into the container. Mix the base and catalyst together by stirring with a stick until a uniform color is obtained. Scrape the container walls and bottom well to insure a thorough mix.
5. Though it is often unnecessary to deair the material due to its low viscosity some may choose to do so. If so,place the container into a vacuum chamber and evacuate the entrapped air from the mixture using a vacuum pump capable of achieving 29 inches of mercury vacuum.The mixture will rise, crest and then collapse in the contanier. Interruption(bumping) of the vacuum may be necessary to prevent overflowing the container. Keep the mixture under full vacuum for 2-3 minutes.
6. Bleed air slowly into the vacuum chamber. When the chamber is at atmospheric equiplibrium,remove the cover plate and take out the container.
7. Pour the deaired material slowly in a steady stream from one end of the mould so that the material flows evenly over the pattern. This should minimize emtrapment of air bubbles under the flowing material. A”ready”mold may be poured firstly over the pattern, which will also help reduce the possibility of entrapping air on the pattern and in the cured rubber.A mold release agent may be applied on the pattern first to improve release.
8. Allow the rubber to cure for 2-4 hours at 24C before removing the cured rubber mold from the pattern. Heat acceleration not recommended with this product.
9. For best results, allow the mold to air cure an additional 24 hours before using it in production.
Shelf Life of casting material -- liquid silicone
Twelve(12) months from date of shipment when stored under 250C in the original sealed packages.
First Aids of casting material -- liquid silicone
Inhalation: Remove sources of contamination and move victim to fresh air. Contact physician immediately.
Eye Contact: Flush eyes with plenty of water. If irritation persists, seek medical attention.
Skin Contact: In case of skin contact, wash thoroughly with soap and water; remove contaminated clothing and launder before reuse; seek medical attention if rash develops.
Ingestion: Do not indeuce vomiting unless instructed by a physician.Contact physicain immediatedly.
More details of Silicon Rubber RTV for mould making Rubber , pls feel free to contact Ms Taylor:
Tel:086-755-89212380
Mob:086-18938867522
Skype: taylordl828
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