RTV2 Silicone Rubber Liquid Silicone Manufacturer Mold Making Silicone Supplier in China

• Material: Organic Silicone
• Application: Medical
• Certification: ISO
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: OTT-S825
• Hardness: 25shore a
• Color: White
• Mix Ratio: 100:3
• Tear Strength: 26 Kn/M
• Tensile Strength: 4.5 MPa
• Elongation: 500%
• Shrinkage: 0.2%
• Shelf Life: 18month
• Transport Package: Plywood Pallet
• Specification: 5kg, 20kg, 25kg, 200kg, 1000kg drum
• Trademark: OTT
• Origin: Guangzhou
• HS Code: 3910000000
• Production Capacity: 600000
• Package Size: 21.00cm * 11.00cm * 14.00cm
• Package Gross Weight: 1.500kg

Product Description

Product Description

RTV2 Liquid silicone is also named as molding silicone. With good resistance to heat, deformation, acid & alkali and expansion, finished silicone molds serve very good performance in reproduction process with every fine detail on designing models.  

  

Product Parameters

Tin cure silicone

iTypical general characteristics	Inspection Method	Model code
Product data (catalyzed A+B)		OTT-S8 series
Hardness	Shore A	5	10	15	20	25	30	35	40
Mix ratio	A:B	100:3
Color	/	white
Pot life	25ºC(77F)	20-40 mins
Curing time	25ºC(77F)	3-5 hours
Viscosity	mPa.s	5000	8000	11000	11000	16000	21000	18000	12000
Tear strength	KN/m	10	16	24	23	26	26	24	22
Tensile strength	MPa	1.6	3.2	3.5	4.2	4.5	4.5	4.2	4.0
Elongation	%	500	600	580	500	500	450	350	280
Shrinkage	%	0.2

 

Features:

1.Almost nil shrinkage

2.Good fluidity, operability and excellent operation

3.Good resistance to weather, temperature, aging, acid

4.Excellent tear strenght, comfortable duplcation times

5.High chemical resistance to aggressive components of some types of resins

Instructions

1. Make sure the surface of the original is clean and free of loose material. 

2. Weight 100 Part A base and 3 parts of Curing Agent in a clean container.

3. Stir Part A base silicone before use thoroughly , as filler separation may occur upon prolonged storage.

4. Mix Part A and Part B evenly until the curing agent is completely dispersed in the base. 

5. Pour the mixed Part A base silicone and curing agent as soon as possible onto the original

6. De-mold after 24 hours ,it is will improve the replicate times of silicone mold.

Note:It is strongly recommended that entrapped air be removed in a vacuum chamber, allowing the mix to completely expand and then collapse. After a further 1-2 min under vacuum, the mix should be inspected and can be used if free of air bubbles. A volume increase of 3-5 times will occur on vacuum de-airing the mixture. So a suitably large container should be chosen.

Company Profile

OTT New Material Co., Ltd. is located in Guangzhou, Guangdong. We are a leading professional manufacturer of silicone material with integrating R&D, production and sales. Our customers are from all over the world. If you are interested in our products, please feel free to contact us for further information.

 

Packaging & Shipping

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

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.