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Polyurethane Rubber For Concrete Stamp

We managed to test your silicone. The result is excellent, exceeding our expectation. We have approved it with many thanks.

—— Michael

I am very pleased with the Silicone rubber. It's great to work with you.

—— Joe

I would like to give you a 5 star review, the tear strength of the cured rubber is terrific.

—— Joseph

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—— Don

Julie Perfect product. You are a great communicator. Well done.

—— Nick

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Polyurethane Rubber For Concrete Stamp

Polyurethane Rubber For Concrete Stamp
Polyurethane Rubber For Concrete Stamp Polyurethane Rubber For Concrete Stamp Polyurethane Rubber For Concrete Stamp Polyurethane Rubber For Concrete Stamp

Large Image :  Polyurethane Rubber For Concrete Stamp

Product Details:
Place of Origin: China
Certification: MSDS , SGS, Reach
Model Number: MC-PU70
Payment & Shipping Terms:
Minimum Order Quantity: 320
Price: Negotiation
Packaging Details: 20kg/drum , 200kg/drum
Delivery Time: 5-10 working days
Payment Terms: L/C, , T/T, Western Union, PayPal ,
Supply Ability: 8000kgs/day
Detailed Product Description
Product Name: Polyurethane Resin Color: Yellow Clear
Mixing Ratio: 1:1 Hardness: 70 Shore A
Working Time: 20-30mins Method Of Molding: Pourable
Tear Strength: 5-8MPA Tensile Strength: 18-20N/mm
Viscosity: 2500 Cps Shrinkage: NO
High Light:

2 Component Polyurethane Rubber For Molds


70 shore Polyurethane Rubber For Molds


20N/mm two part polyurethane rubber

High Strength 1:1 Two-Component Polyurethane Liquid Rubber For Making Wall Tile Concrete Stamping Molds



Polyurethane liquid rubber consists of A&B component, B is curing agent, and A is polyurethane prepolymer.

can be used as a concrete or cement stamping mold as well as for making hard durable rubber parts for machinery or automotive applications.

There are many different formulations of polyurethane rubbers for mould making. The polyurethane casting rubber can be pure or filled with special mineral charges. Are available different hardness from 40 Shore A to 80 or 90 Shore A.


Substitute for making the mould of “cultural stone” and concrete stamping. It also applies to electrical equipment potting, rubber rollers, Ski and snowboard ,rubber plates, rubber wheels, shoe models and others.

Properties of Liquid Polyurethane Rubber for Making Concrete GRC Molds:

Technical Datasheet




Type MC-PU70A
Appearance Colorless or light yellow transparent liquid
Viscosit(y 30)mPa·s/ 2500±300




Type MC-PU70B
Appearance Light yellow liquid
Viscosity(30)/mPa·s 560±200
Ratio A:B(mass ratio) 1:1
Operation temperature/ 25-40
Gel time(30)*/min 20-30(variable)
Appearance Light yellow
Hardness (shore A) 70±3
Tensile strength/MPa 8-11
Elongation at break/ % 250-350
Tear strength/(kN/m) 26-30
Rebound/ % 30-35
Specific gravity(25)(g/ cm3) 1.18

Fluid liquid
Cold curing
Easy to use
No linear shrinkage
Excellent mechanical resistance
High tearing strength
Long life of the moulds


Measuring & Mixing

Liquid urethanes 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 (23°C-25°C).

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



20kg per drum, 640kg per pallet


Polyurethane Rubber For Concrete Stamp 0



Store in cool and dry place. If you can’t use one drum up at a time, please inject N2.The storage time of original packing is 6 months.


Always wear a respirator or self –contained breathing apparatus when working with urethanes.
Use between 65F and 75F in a humidity-controlled environment.
AeroMarine Products Concrete Molding and Stamping Rubber 75A Urethane is moisture sensitive.
Use only clean plastic and/or metal mixing utensils and containers.
Do not use paper or wood.
Re-cap the bottles immediately after use.
Extend-It aerosol nitrogen blanket can be used to protect the product from moisture contamination.
Never mix less than about 3 ounces of product, as this ratio is hard to measure and will take longer to cure as the exothermic reaction does not generate much heat at this volume.
Avoid mixing with drill motors because of the friction they generate, mixing with electric drills can start the exothermic cure process and cause the product to cure in the mixing container.

It is always best to mix the material by hand, with a plastic or metal mixing utensil.
Don’t vary the mix ratio. Unlike some polyester resins, altering the mix ratio to vary the cure cycle will not work with urethanes.
Mix in clean plastic containers. Paper cups and wooden mixing utensils may contain moisture which can adversely affect the urethane rubber. Avoid waxed paper cups because the wax may melt and contaminate the rubber.
Air bubbles in urethanes are almost always caused by moisture. Do everything possible to avoid moisture getting into the mix. Replace the lids onto the containers promptly after use. Do not use the urethane rubber during rainy days or times of high humidity. Avoid pouring against an unsealed water based product such as plaster or hydrocal. Seal plaster or hydrocal with a product like Krylon Clear Acrylic.
Avoid mixing a large batch- The larger the batch, the more exotherm or heat is generated in the cure cycle. If you are making a large mold, mix small batches to make the process more manageable.
Shake or stir well before use- The liquid components may settle in the containers during storage. Shake or stir the components separately and thoroughly before mixing. Let it sit a few minutes to let any bubbles rise to the surface after shaking the container.

Contact Details

Contact Person: Mrs. Amy Tse

Tel: +86-18664910896

Fax: 86-769-82696808

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