How to Make Polyurethane Resin Molds with RTV2 Liquid Silicone Rubber

• Customization: Available
• Material: Organic Silicone
• Application: Medical, Industrial
• Model NO.: INI-E Series
• Certification: ISO, FDA, REACH, RoHS
• Usage: Moulding
• Mode Item: Ini-E640
• Color: Translucent
• Hardness: 40 Shore a
• Mix Ratio: 1:1
• Shrinkage Rate: Less Than 0.1%
• Elongation: 500%
• Tear Strength (kN/M): 25
• Tensile Strength (MPa): 6
• Operate Time: 30-50 Minutes
• Curing Time: 3-5 Hours
• Curing Temperature: 25c
• Viscosity: 5800 Cps
• Grade: Food and Medical
• MOQ: 200kgs
• Transport Package: 25kg
• Specification: drum
• Trademark: INIBABA
• Origin: Shenzhen, China
• HS Code: 39100000
• Production Capacity: 800 Tons Per Year
• Package Size: 90.00cm * 90.00cm * 15.00cm
• Package Gross Weight: 20.000kg
• Lead Time: 3 days (1 - 200 kg) ; 5 days (201 - 500 kg) ; 7 days (501 - 1000 kg) ; To be negotiated ( > 1000 kg)

Product Description

Mold Making Silicone

INI-E640

Description  
Two-component silicone, platinum-curing/ addition-cure type, flowable, vulcanizes at room temperature or heated temperature. 
Can be used for a long time in the temperature range of - 65 ° C - 200 ° C and keep its soft and elastic properties. 

Application
- Suitable for molding variety of products in large quantity, such us art crafts, furniture, architectural elements, garden ornaments, shoe, tire, soap, candle, vacuum bagging, wind turbine blades, ship/boat hulls, aircraft hulls, FRP pipes/profiles, beacon lighthouse covers, industry, aviation and other fields etc.
- Suitable for materials such as resin, PU, PVC, polyester, gypsum/plaster, wax etc.     






Features & Advantages

• Food grade, FDA
• Low shrinkage
• Low viscosity
• Anti-deformation

• High temperature resistance
• Not oily
• No bubbles

• Excellent flow leveling which will copy finest details and patterns from exquisite products.

• Durable with excellent tear and tensile strength, guarantee molding times
• Easily demolding
• Resist aging, acid, alkali, corrosion and weather aging

 

Typical properties INI-E640
 

Properties Index		Test Report
Before Curing	Appearance	Translucent fluid
	Viscosity(cps)	5800±500 (Adjustable)
Operating	Mixing Ratio (By weight)	1 :1  or  10 :1
	Operating Time(25ºC  /min)	30~50   (Adjustable)
	Curing time (hr, basically cured)	3~5   (Adjustable)
	Curing time (hr, perfectly cured)	12
After Curing	Hardness (shore A)	40±2
	Tear strength (kN/m)	22±3
	Tensile strength (Mpa)	5±0.5
	Shrinkage (%)	≤0.1
	Elongation (%)	460~560
	Density (g/cm)	1.02

Notes: Above data are only reference values, actual data is floating and adjustable.

Operation instructions

1. Mix part A and pars B evenly with 1:1 mixing ratio.

Notes: 1) Weigh the two parts exactly by electronic weight. For example, the operation time will be shorten after adding too much catalyst.

1. Mix part A and part B evenly. Otherwise the silicon rubber will be partly solidified which will make the finished molds meet a short life and waste silicon rubber.

 

    2. Vacuum pumping

Notes: 1) This step is not have to have, but it is best if there is one. It will discharge all air in the mixture successfully, so as to ensure that there
will be no bubbles in the finished mold.

2) This step is less than 10 minutes. Otherwise, it
Will cause cross-linking reaction, and no more
further steps will be available. 
 

1. Pouring casting

Notes: We suggest to set the mold for another 12 hours after demould before put it into large production.




Handing and Storage

1. Precautions for safe handling:

Protective measures: Training should be provided to anyone working with or near this material. Training should cover potential health effects and proper handling techniques. Avoid contact with eyes, skin and clothing. Avoid ingestion and inhalation.

Measures to prevent fire: Ensure good local exhaust ventilation. Keep container away from any sources of ignition or heat (e.g. open flames, hot surfaces). The work area should be equipped with the corresponding species and quantity of emergency equipment, spills emergency treatment equipment and appropriate storage material.

Measures to prevent aerosol and dust generation: Ensure good local exhaust ventilation.

Measure to protect the environment: Do not allow this products to be released to the environment without proper treatment.

Advice on general occupational hygiene: Eating, drinking and smoking should be prohibited in areas where this material is handled, stored and processed.

 

1. Conditions for safe storage, including any incompatibilities:

Technical measures and storage conditions: Store in a cool, dry, well-ventilated area away from 
incompatible substances, feedstuffs, beverages and foods. Keep away from heat, sparks and flame. Treat carefully, avoid physical damage to containers. The storage area should be equipped with the corresponding species and quantity of emergency equipment, spills emergency treatment equipment and appropriate storage material.

Requirements for storage rooms and vessels: Keep container tightly sealed.

Package
5KG, 20KG, 25KG and 200KG per drum.
(There are metal drum and plastic drum for your choice for 5KG and 20KG)



Shelf life
Twelve(12) months when stored under dry and cool place by original package under 25ºC.
 

Features:

1.Almost no 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

6.Food grade silicone(environmental, odorless and nontoxic

7.High resistance to high temperature and aging(resist -60 to 250ºC)

Operate Process:

1. The surface of the original is clean and free. 

2. Weight 100 Part A base and 100 part B in a clean container.

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

4. Mixing Part A and Part B evenly until completely dispersed in the base. 

5. Pouring the mixed base silicone and platinum 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.

 

Our Company:

INIBABA is a silicone rubber manufacturer in China that has ability to manufacture electric power water proof polymer, rtv2 silicone rubber, liquid silicone rubber, silicone potting, silicone gel, sticky silicone, silicone glue, silicone elastomer, platinum cured silicone rubber , tin cured silicone rubber.

According to the wide application, we can provide electronic potting silicone, mold making silicone, food grade silicone, pad printing silicone, coating silicone for textile and fiberglass, special effects silicone, silicone for high-tech, medical silicone, silicone for making sex toys, shoe insoles, printing roller, silicone badge, silicone toys, tattoo practices skins, medical educational supplies, suture pad, scar treatment patch and so on.

With advanced the technology of silicone production and high tech equipment, the silicone rubber provided by INIBABA has excellent quality without shrinkage problem, oily problem and implete curing problem. Through the control of multiple processes, INIBABA silicone gel is more delicate, so it has higher tear resistance and tensile performance, and the molds and products are more flexible and durable.

 
WHY CHOOSE INIBABA:

1. As a manufacturer, after-sales service and technical support are guaranteed, once you meet problem during using silicone, INIBABA will provide effective solution in the first time.

2. One to one service, guaranteed to teach you how to use silicone. If you are a beginner in silicone application, INIBABA team will be at your service.

3. The quality of silicone products is leading the world level with advanced technology and 50 production processes for quality protection by supervised by professional doctoral team.

Fast delivery by 1-3 days, with many high-end equipment, the production capacity is several times than most of manufactures in the same industry.

Our Advantages:
1.high quality similarity to global big brand of Wacker, Dowcoring, KCC, ACC
2.12 months shelf life
3.50-1000 duplication time decided by product sizes
4.silicone non toxic, environment friendly
5.fast delivery within 3-5 days
6.shipment by air/sea/road is available
7.24 hours after sales service 
8.professional R&D team