art b and mix the silicone rubber and curing agent evenly.
Step two: vacuum pumping
Without exception, this step takes less than 10 minutes.
Note: the time for vacuum-pumping should be less than 3¡a5 minutes , otherwise, once the silicone rubber has cross-link reaction during vacuum pumping process, it will not be operated.
Step three: pouring the vacuumed silicone mixture into the frame with original concrete mold .
Shelf life for silicon rubber concrete molds
10~12months, when stored in a dry & cool place under the room temperature 25.
Packing for silicon rubber for concrete molds
25kg/drum 200kg/drum
s than 3¡a5 minutes , otherwise, once the silicone rubber has cross-link reaction during vacuum pumping process, it will not be operated. Step three: pouring the vacuumed silicone mixture into the frame with original concrete mold . Shelf life for silicon rubber concrete molds 10~12months, when stored in a dry & cool place under the room temperature 25. Packing for silicon rubber for concrete molds 1kg/ bottle , 5 kg/drum vacuumed packing, 25kgs/drum vacuumed packing, 200 kg/drum 1kg/ bottle , 5 kg/drum vacuumed packing, 25kgs/drum vacuumed packing, 200 kg/drum
1.Description of liquid silicone rubber C830 Silicone rubber is condensation cure silicone rubber for mold making. The silicone rubber will be cured under room temperature, It’s two-components, the mixing ratio is 100:2 . Part A is a flowable liquid silicone , part B is the catalyst. It has an exceptional fluidity and good operability. C-830 tin cure mold silicone has a good property , it is suitable for various mold making . 2.Characteristics of liquid silicone rubber *An exceptional fluidity and good operability, easy to demold *Good tensile strength and tear strength *lower shrinkage *non-deformation ,non-oily *good flexibility *eco-friendly *long shelf-time &lifetime 3.Application of liquid silicone rubber stone mold ,concrete mold , cement casting mold polyurethane casting mold , GRC casting mold , fiberglass cating mold statue mold , sculpture mold , resin craft mold ,artificial wooden mold gypsum mold , plaster mold ,bronze casting mold candle mold ,soap mold, shoe mold , tyre mold ,etc ..... C830 Silicone rubber is mainly suitable middle sized product and big size with simple pattern. Package: 1kg/drum,5kgs/drum,20kgs/drum,25kgs/drum,200kgs/drum based on vacuum packing. Shelf life and transportation 1. Twelve(12) months when stored at 25C in tightly closed original packages. 2. This kind of product is non-dangerous product, which could be transported as general chemicals.
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1. Application of rtv liquid moulding silicone rubber : liquid molding casting silicone rubber is mainly applied for making various molds,such as reproduction of poly resin, epoxy, polyurethane-polymer, plaster, gypsum casting and moulding, soaps, candle & lighting, architecture, decorative arts and crafts, plastic toy, gift and stationery, big statue, cultural relic product, etc.. 2.Features of rtv liquid moulding silicone rubber: ,a. low viscosity, exceptional fluidity and easy operation : 21000 cps suitable for pouring b. resistance to deformation, high-temperature 220 degree centigrade c. acid, alkali and ageing-resistance d. low shrinkage< 0.2% e. good tensile strength 36¡À2 (kgf/cm) f. high reproduction times 3. rtv liquid moulding silicone rubber data sheet: 25kg/drum, 200kg/drum
Form Tube Color Multicolor Size Customized Type Rubber Material Silicon
Introduction of rtv 2 molding silicone rubber: 1. Two-part of rtv 2 molding silicone rubber: flowable liquid silicon and catalyst. 2. Rtv 2 molding silicone rubber cures at room temperature within 4-6 hours. Features of rtv 2 molding silicone rubber: 1. Rtv 2 molding siliconerubber has an exceptional fluidity and good operability. 2. Rtv 2 molding silicone rubber hasgood temperature and deformation resistance as well as low shrinkage. 3. Rtv 2 molding siliconerubber has high duplication times. Operation step for rtv 2 molding silicone rubber: 1. Step one to use rtv 2molding silicone rubber: take 100g of part a and add 2g of part b and mix thesilicon rubber and the curing agent evenly. 2. Step two to use rtv 2molding silicone rubber: vacuum pumping 3. Without exception, thistakes less than 10 minutes. Otherwise, it will cause cross linking reaction, and no more further steps will be available. 4. Step three to use rtv 2molding silicone rubber: brushing cast & perfusion molding operation. 25kgs/drum vacuum package or 200kgs/drum
Tin-based silicones, also called condensation-cure silicones, are two-component materials which cure at room temperature(RTV)to flexible, high tear-strength rubbers. Tin cured silicones can be poured onto models or they can be made brushable by adding a thixotropic additive. They are ideal for molds where easy release or high temperature resistance is required. Tin cured silicones can be used for casting polyurethane, epoxy and polyester resins, waxes, all gypsum products and low-temperature metals. Our tin-cured silicone systems are the most economical. They are best used for casting resins and low melt metals.
Factory price rtv2 silicone rubber for crafts molding Crafts Molding Silicone 1.Description 2. Technical Datasheet Typical general characteristics Inspection MethodValue Product data (Catalyzed A+B)C-820C-825 HardnessShore A20±225±2 Mix RatioA:B100:3100:3 Color/WhiteWhite Pot life25 °C (77F)30-40mins30-40mins Curing time25 °C (77F)3-4 hours3-4 hours Mixed viscositymPa.s16000±100020000±1000 Tear-strengthkg/cm20±222±2 Tensile-strengthM.pa3.6±0.54.0±0.5 Elongation%400±50450±50 Shrinkage%?¤0.3?¤0.3 Note: This is a 100A:3B mix ratio product that must be measured by weight. The choosing of suitable hardness should be according to the size and pattern design of the products. If large products and therefore multiple-piece molds are needed by customers, silicone rubber with higher hardness will be required for the molds. Conversely, soft silicon is indispensable for molds with complicated pattern and delicate details. The amount of curing agent admixture depends on the actual need of customers. More will be added for speedy drying and fast release and less when otherwise. 3. FEATURES Low viscosity,great flexibility,Extra low shrinkage,Chemical resistance,release properties, Easy to work with,High tear strength,Heat Resistance,various color is available,High reproduction rate 4.SHELF LIFE: When stored at or below 32°C (89.6°F) in the original unopened containers, C-8 series Silicone Base and its Curing Agents have a usable life of I0 months. 5.Package Silicone base:1kg/drum; 20kg/drum;25kg/drum;200kg/drum. Curing Agent: 30g/bottle; 1kg/bottle