Two component liquid polyurethane rubber for plaste mold make

FOB Reference Price:Get Latest Price
US $7.5-9 / Kilogram | 200 Kilogram/Kilograms (Min. Order)
Supply Ability:
300000 Kilogram/Kilograms per Month
Report Suspicious Activity
Quick Details
Place of Origin:
Guangdong, China (Mainland)
Brand Name:
Model Number:
Hardness(Shore A):
Mixing Ratio:
Tensile Strength(Mpa):
30 MPa
Elongation break(%):
Density at 23℃ in water:
1.35 g/cm3
Tear strength:
Pot life time:
30-40 min
Cured time:
4-6 hours
Packaging & Delivery
Packaging Details
1kg plastic drum, 5kg metal/plastic drum, 20kg plastic drum, 25kg metal/plastic drum, 200kg metal drum
Vacuum bag can take according to users demand.
Delivery Time
Shipped in 5 days after payment
Product Description

RTV-2 Polyurethane/ Urethane Rubber

Polyurethane rubber offer superior physical and performance properties for production casting of wax,plasters and resin U series urethane are available in 20A, 30A, 40A, 50A and 60A Shore hardness’s and feature convenient one-to-two by volume mix ratios.

U series mold rubbers are used for a variety of applications including making molds to reproduce sculpture and architectural elements, as well as for making special effects, toys and prototypes.Vibrant colors can be achieved by adding U-color Tints. available from Rongxin.

                          Physical properties of Condensation Cure Mold Making RTV2 Silicone Rubber

Item NO.:
Mix ratio:
Tensile strength:
Pot life time:
30-45 min
20±2 A
≤0.1 %
Cured time:
6-8 hours
Tear strength:
12 month
Technical Guidelines


Preparation - Store and use at room temperature (73°F/23°C). These products have a limited shelf life and should be used as soon as possible. Environmental humidity should be as low as possible. Good ventilation (room size) is essential. Wear safety glasses, long sleeves and rubber gloves to minimize contamination risk. 

Some Materials Must Be Sealed - Urethane are adhesive. To prevent adhesion between the rubber and model surface, models made of porous materials (gypsum plasters, concrete, wood, stone, etc.) must be sealed prior to applying a release agent. A high quality Shellac is suitable for sealing modeling clay that contain sulfur or moisture (water based). Thermoplastics (polystyrene) must also be sealed with shellac or PVA. In all cases, the sealing agent should be applied and allowed to completely dry prior to applying a release agent.
Non-Porous Surfaces - Metal, glass, hard plastics, sulfur free clay, etc. require only a release agent.

IMPORTANT: Shelf life of product is reduced after opening. Remaining product should be used as soon as possible. (Within a month)

Applying A Release Agent - A release agent is necessary to facilitate demolding when casting into or over most surfaces. Use a release agent made specifically for mold making. A liberal coat of release agent should be applied onto all surfaces that will contact the rubber.

IMPORTANT: To ensure thorough coverage, lightly brush the release agent with a soft brush over all surfaces of the model. Follow with a light mist coating and let the release agent dry for 30 minutes. Because no two applications are quite the same, a small test application to determine suitability for your project is recommended if performance of this material is in question.

Liquid urethane are moisture sensitive and will absorb atmospheric moisture. Mixing tools and containers should be clean and made of metal or plastic. Materials should be stored and used in a warm environment (73°F/23°C).

IMPORTANT: Pre Mix the Part B before using. After dispensing equal amounts of Parts A and B into mixing container, mix thoroughly for at least 3 minutes making sure that you scrape the sides and bottom of the mixing container several times.

If Mixing Large Quantities (16 lbs./7 kg. or more) at one time, use a mechanical mixer for 2 minutes followed by careful hand mixing for one minute as directed above. Then, pour entire quantity into a new, clean mixing container and do it all over again.
Although this product is formulated to minimize air bubbles in your the cured rubber, vacuum degassing prior to pouring rubber will further reduce entrapped air.

For best results, pour your mixture in a single spot at the lowest point of the containment field. Let the rubber seek its level up and over the model. A uniform flow will help minimize entrapped air. The liquid rubber should level off at least 1/2” (1.3 cm) over the highest point of the model surface.

Curing - Allow rubber to cure a minimum of 16 – 24 hours at room temperature (73°F/23°C) before de-molding.

Using The Mold - If using as a mold material, a release agent should be applied to the mold before each casting. 

Company Profile

Dongguan Rongxin Silicone Technology CO.,LTD started in the year of 1999,and specializes in manufacturing liquid molding silicone rubber, electronic potting silicone rubber,polyurethane rubber,polyurethan resin and life casting silicone rubber.
With customers’support and the help,RX grows rapidly. In 2012,we set up Shenzhen Rongxingda Polymer Material Co.Ltd and Hongkong Rongxingda Trading Limited, Our factory covering an area of about 5000sqm with 5 production department, more than 100 worker
Depending on high quality products and service and reasonable price,RX brand is welcomed by clients. In China, our partners spread over more than 20 cities. In overseas markets,we export all over the world. Meanwhile, our goods obtained many countries‘ safety certifications, such as MSDS,FDA,SGS,RoHs,PONY,REACH,UL andso on

Factory & Equipments
Packing & Delivery

Per Kilogram:1kg/bottle,5kg/plastic drum,20kg/plastic drum,25kg/iron drum,27kg/iron drum,200kg/iron drum

Per Carton: 1kg bottle,12kg/carton 5kg drum, 20kg/carton
Per Pallet:20kg/carton,27carton/pallet ;25kg/drum,18 barrel or 24 barrel/pallet;200kg/drum,4 barrel/pallet

20 feet container:12.5T with pallet,about 20T without pallet

40 feet container:28T with pallet

  1kg/bottle, 12kg/box(plastic drum)

   5kg /drum, 20kg/box (plastic drum)

 5kg /drum, 20kg/box (metal drum)

   20kg/25kg drum (plastic drum)

     20kg/25kg drum (metal drum)

                     200kg metal drum

FAQ & Contact

Q1: Are you trading company or manufacturer ?
A: We are a R&D manufacturer.

Q2: What about the lead time?
A: Sample needs 2-4 work days, mass production time needs 5-7 work days for order quantity more than. It is according to quantity.

Q3: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q4: What is your terms of payment ?
A: We accept T/T, W/U, Paypal, LC.

Q5:  How do you ship the goods and how long does it take to arrive?

A: For sample order, we usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. 

Airline and sea shipping also optional.

Q6:  Is it OK to print my logo on product?

A: Yes, we accept OEM, and label can be print according to your requirements.

Q7:  Do you have any MOQ limit for silicone order?

A: Low MOQ 200kg for mass production, at least 1kg for sample checking is available.

If you have another question, pls feel free to contact us as below:

Contact US:

For more information about our materials and capabilities, visit discuss how we could work together to meet your specific needs, please:
Tel: 0086 755 29815831

Any advice or after-sales support, please contact us: