RTV-2 Liquid Silicone Rubber for Soap Mold and Loaf Soap Molds - Food Grade High Tear Strength

Product Description

Product Description

Our RTV-2 Liquid Silicone Rubber is a two component addition cure platinum catalyzed silicone specifically formulated for manufacturing durable high precision molds for soap making and loaf soap production. This professional grade mold making silicone is designed for cold process soap, melt and pour soap, glycerin soap, and custom 3D soap designs.

Silicone rubber offers excellent release properties, high tear resistance, and heat tolerance, making it the ideal material for soap molds that must withstand repeated use and exposure to soap ingredients

Key Features

Optimized for Soap and Loaf Molds - Formulated to withstand repeated exposure to soap ingredients including oils, lye fragrances, and colorants. Excellent chemical resistance and non stick properties for easy demolding .

High Tear Strength - Tear strength of 20 to 28 kN m ensures molds withstand repeated demolding of soap loaves without tearing. Supports 50 to 80 mold cycles with proper cleaning and maintenance .

Low Shrinkage - Ultra low shrinkage of 0.1 to 0.3 percent ensures dimensional accuracy and consistent soap bar dimensions across production batches .

Excellent Detail Reproduction - Low viscosity formulation flows smoothly into every cavity capturing intricate patterns, textures, and custom designs with exceptional fidelity .

Food Grade Safety - FDA certified food grade silicone, non toxic, odorless, and safe for direct contact with soap ingredients. Compatible with all common soap making materials .

Room Temperature Curing - Vulcanizes at room temperature within 4 to 8 hours. No heating equipment required. Heat acceleration available for faster production .

Easy Demolding - Inherent non stick surface allows cured soap to release cleanly without heavy release agents .

Adjustable Hardness - Shore A hardness from 20 to 28 customizable to meet specific requirements 

Technical Datasheet

 

Property	Value
Appearance	Translucent Clear
Hardness Shore A	20 to 28 Customizable
Mix Ratio	1 to 1 by weight
Mixed Viscosity	700 to 18000 cps
Pot Life at 25 Degrees Celsius	30 to 60 minutes
Demold Time at 25 Degrees Celsius	4 to 8 hours
Tear Strength	20 to 28 kN m
Tensile Strength	3.5 to 5.0 MPa
Linear Shrinkage	0.1 to 0.3 percent
Operating Temperature	60 to 250 Degrees Celsius
FDA Compliance	Certified Food Grade
RoHS REACH	Compliant

 

Applications

• Soap Molds (Cold Process, Melt and Pour, Glycerin Soap)

• Loaf Soap Molds

• Commercial Mass Production Soap Molds

• Handcrafted Small Batch Soap Molds

• Custom Themed Soap Molds (Holiday, Gift, 3D Shapes)

• Hotel Custom Soap Molds

• Candle Molds

• Epoxy Resin and Polyurethane Resin Molds

• Concrete, Plaster and GRC Molds

• Chocolate Molds, Candy Molds and Cake Molds

• Ice Cube Trays

• Jewelry and Wax Molds

• Life Casting and Prosthetics
  

ADDITIONAL INFORMATION
Reproduction of Vertical Surfaces
If a skin mold is required of a vertical object or surface and cannot be made by normal pouring techniques, the catalyzed mixture can be made non flowable by the addition of thixotropic agent.

1. Prepare the original as described earlier.
2. Brush the original with a thin layer of catalyzed mixture. Repeat the operation when the first layer has started to cure, to achieve a coating thickness of >2mm. Leave to cure at
room temperature until the material is tacky.
3. Prepare a new catalyzed mixture of silicone and add 1% by weight of thixotropic additive and mix thoroughly until a paste consistency is reached. De-airing of the mixture is not
required.
4. Using a spatula, cover the coated original with the thixotropic coating until all undercuts are filled; leave to cure for 24 hours at room temperature.
5. Construct a support mold using polyester resin or plaster and allow to set in contact with the silicone coating. Carefully remove the support mold. Peel the rubber off the original
and place in the support mold.

Use at High Temperatures
Some molds produced from condensation cure silicone rubbers can degrade when exposed to temperatures above 150°C (302°F) over a period of time or when totally confined in
storage at high ambient temperatures. This can result in softening and loss of elastic properties.
Resistance to Casting Materials
The chemical resistance of fully cured silicone rubber is excellent, and similar to all condensation cure silicone elastomers. It should be noted however that ultimately, resins and
other aggressive casting materials will attack silicone molds, changing physical properties, surface release and possibly mold dimensions. Molds should be checked periodically during
long production runs.
 

Features
Outstanding release properties High flowability and long working time
High tear strength & tear strength High elasticity, for easy removal of complex replica parts
Can add thixotropic for vertical surface application

Easy for cooperating and demold ,non-oily

Company Information

Dongguan Gangtian Polymer Materials Co.,Ltd, located in Dongguan City, Guangdong Province, China, is a professional leading manufacturer of RTV 2 Liquid Silicone Rubbers. Focusing our Research and Development on innovation, we have been providing performance enhancing solutions to serve the diverse needs of thousands of customers worldwide since the year of 2003. Our main products include RTV 2 mold making series, tinsil and platsil, RTV 2 platsil for products, injection LSR, silicone potting compound, silicone oil, silicone ink, etc. With penetrating Professionalism in technology solutions and Honesty in after service, we GT Polymer Materials Co., Ltd are not only a trustworthy partner but also a good friend to the customers worldwide.Brand Story - Gangtian, founded in 2003 in Dongguan, by Yuanfu Deng, a Chinese chemist and engineer in the field of polymer materials, is a silicone factory brand. "Gang", or port, is a new place near sea for him to cultivate. "Tian", or field, stands for his hometown, a very small village in Hengyang, Hunan Province. Influenced by his parents who were both farmers, he creatively combines the company culture with Eastern wisdom, to work on the vision of "Making a better life with magic silicone rubber". With his efforts and achievements in R & D of silicone rubbers, we have been serving hundreds of domestic and overseas customers with quality materials for more than 15yrs. And now our production capacity reaches to more than 500tons per month. We uphold the core values of "create value for partners" and create value for e-commerce and information service industry through independent innovation and sincere co-op with "honesty, tolerance, innovation and service" as the spirit of enterprise. We always warmly welcome you to join us. Let's go and explore this magic world of silicones!
 

Packaging & Shipping

Packing
1kg/plastic can,  5kg/plastic drum , 20kg/metal drum,  25kg/ plastic drum, 25kg/ metal drum, 200kg/metal drum,
Customized service on package is available.
 

 

 

Shipping
Normal delivery time is within 3-5days with confirmation on payment in our bank.
Please confirm with us if you need an urgent order.

• Shipments by sea, by air, by train, or by truck is available.
• Normal delivery time is within 3-5days with confirmation on payment in our bank.
• Please confirm with us if you need an urgent order.

Shelf life
Twelve (12) months from date of shipment when stored at 25ºC in the original sealed packages.