Concrete Molding Stamping Rubber – 2 Gallon Kit

$192.00

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AeroMarine urethane elastomer concrete molding and stamping rubber is a polyurethane rubber that can be used as a concrete or cement stamping mold as well as for making hard durable rubber parts for machinery or automotive applications.
2 gallon kit: 1 gallon each of Part A and Part B
1:1 ratio by volume
Pour only, do NOT spray

DESCRIPTION
HOW-TO
SHIPPING & RETURNS
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TDS

PRODUCT DESCRIPTION

Features:

Room temperature cure
Low viscosity
Simple, noncritical 1:1 mix ratio
Negligible shrinkage
Shelf life- When stored in the original, unopened containers in a cool, dry environment, out of direct sunlight, the shelf life is six months. Once opened, shelf life can be preserved with the use of an aerosol nitrogen blanket.
For molds with fine details use: Mold Making Latex or AM 128 RTV Silicone.

Physical Properties:

Viscosity: 850cps
Color: Black
Work life: 10 minutes@70F
Cure time: 12 hours@70F
Shore Hardness: 75A
Tensile elongation: 150%
Tensile strength: 650psi
Maximum temperature: 105°C
Thermal conductivity 0.16-0.18 watts per meter Kelvin Room Temperature

HOW-TO:

Mixing:

Shake both A and B sides vigorously.
Measure out equal parts, by volume, of A and B into clean plastic or metal containers.
Combine both sides into a third clean mixing container and mix vigorously for at least one minute, taking care to scrape the sides and bottom of the mixing container with your mixing utensil, until the product is one uniform color.
If you are pouring layers of Concrete Stamping Rubber 75A Urethane, let each layer fully cure before pouring subsequent layers.
- 75A Urethane bonds very well to itself.
You MUST use a mold release when pouring AeroMarine Products’ Concrete Molding and Stamping Rubber 75A Urethane against another surface. We recommend a petroleum based release.

Tips:

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.

Technical Data Sheets (TDS)

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SHIPPING AND RETURNS

Shipping
Via Fedex Ground

Returns
We only accept returns of unopened and unused product. Customer must return product within 30 days of receipt. Customer must contact us before returning a product. Customer pays for return shipping. All returns are charged a 15% restocking fee.

**shipping estimates may vary based on product selection and destination and a tracking code will be sent after checkout.

Canadian Customers**

If you are ordering from Canada, additional shipping rates and fees may apply. Please contact one of our representatives for more information. Contact us today!

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Concrete Molding Stamping Rubber – 2 Gallon Kit

Features:

Physical Properties:

HOW-TO:

Mixing:

Tips:

Canadian Customers**