RTV-2 Silicone Rubber for Craft Casting Liquid Silicone

Product Description

RTV-2 Silicone Rubber for Craft Casting Liquid Silicone

Product Description

RTV-2 Silicone Rubber for Craft Casting Liquid Silicone:

Silicone rubber is used for making:

• molds of concrete, stone, 
• GRC, gypsum decoration, plaster ornaments, 
• fiberglass products, 
• polyester decoration, 
• unsaturated resin crafts, polyresin crafts, polyurethane,
• bronze casting,
• wax, candle, soap
• sculpture
• food mold, cake mold

  and silmilar products

Product Parameters

RTV-2 Silicone Rubber for Craft Casting Liquid Silicone:

Platinum cure silicone

Typical general characteristics	Inspection Method	Model code
Product data (catalyzed A+B)		OTT-J8 series
Hardness	Shore A	5	10	15	20	25	30	35	40	50
Mix ratio	A:B	1:1/10:1
Color	/	Translucent
Pot life	25ºC(77F)	20-40 mins
Curing time	25ºC(77F)	3-5 hours
Viscosity	mPa.s	1500	3000	4000	4500	5000	6000	7000	8000	12000
Tear strength	KN/m	12	15	18	24	22	21	22	18	12
Tensile strength	MPa	2.2	4.2	5.2	5.2	6.2	6.5	7.2	7.8	7.0
Elongation	%	500	450	450	500	500	450	450	400	400
Shrinkage	%	0.1

Features:

• Two-part silicon rubber: flowable liquid silicon and  platinum catalyst.
• Cures at room temperature within 3-5 hours.
• An exceptional fluidity and good operability.
• Good tensile and tear strength, low shrinkage.
• High duplication times.
• High elasticity for easy removal of complex replica parts
• Food grade non toxic

Recommend Product

 

 

Installation Instructions

RTV-2 Silicone Rubber for Craft Casting Liquid Silicone:

Step 1: prepare the original molds
Make your original molds perfect. fix it on a board. And fix the original mold on a board , then used four piece of board to enclose the original molds . 
Step 2: Take 100 G parts A and add 100G parts B and mix them evenly. 
*Notes: Mold making silicon rubber is a kind of flowing liquid ,it contains two parts. Part A is a kind of flowing white liquid and part B is the curing agent or catalyst .Pls follow the step strictly:
1.Weigh the two part exactly by electronic weight. If not, for example add too much catalyst , the operation time will be too fast to operate ,which will cause inconvenience to operate . 
2.Mix part A and part B evenly. Otherwise the silicon rubber will be partly solidified and this will give birth to difficulties in your final operation. What's more, the finished molds will meet a short life. All of these will cause a waste of silicon rubber. 
Step 3: Vacuum pumping(optional)
Without exception, this step takes less than 10 minutes. Otherwise, it will cause cross linking reaction, and no more further steps will be available. 
Step 4: Pouring casting or Brush operation
*Notes:1. For simple pattern products we suggest use pouring operation way, which will be very easy to operate and demould. Pourable silicone require low viscosity which will be easy to flow smoothly and easy to de-air . 
2.For delicate pattern products we suggest use brushing operation way, which can copy the pattern exactly. Brushable silicone require high viscosity which won't be easy to flow away and easy to brush. 
3. We sugges to set the silicone mold for another 12 hours after demould before you put it into a large production.

Our Advantages

RTV-2 Silicone Rubber for Craft Casting Liquid Silicone:

1.high quality similar to global big brand
2.18 months shelf life
3.50-1000 duplication time decided by product sizes
4.silicone non toxic, environment friendly
5.fast delivery within 4-6 days
6.shipment by air or by sea is available
7.24h after sales service 
8.professional R&D team

Packaging & Shipping

RTV-2 Silicone Rubber for Craft Casting Liquid Silicone:

Packing : 20KG, 25KG, 200 KG per drum 
Shipping : by air & by sea 
Delivery time: within 4-6 days after your payment confirmed in our bank 
Storage: Storage in cool, dry places. 
Shelf life: 18 months with the original unopened package 

FAQ

RTV-2 Silicone Rubber for Craft Casting Liquid Silicone:

1. What's silicone products you are making?
--liquid silicone, silicone rubber, silicone oil; Due to different silicone molds, our silicone has different viscosity, and cause different hardness, density to meet the requests from client.  

2. Do you offer free sample to client?
--Yes, we can provide the sample for test.  

3. How about the quality control in your factory?
--We have professional QC team to control the quality during production. Goods will be 100% inspected before shipment.  

4. How to remove the bubbles during my mould making?
--After mixing liquid silicone with curing agent, please put the material into vacuum machine to take off the bubbles.  

5. How to get good silicone mould to use longer time?
--The best way is:   #A, Please choose the right liquid silicone according to your products.   #B, Don't use any silicone oil in mold making, because it can make the silicone mould become too soft to use.   #C, Silicone mould can be used longer after the whole silicone mould fully cured, so it's better to wait 2 hours after mould finished.  

6. Why silicone rubber add curing agent after mixing a lot of bubbles?  
--This is normal physical phenomena. The liquid will produce a large number of bubbles in the mixing time, so, it must pass through the vacuum exhaust bubble treatment.