Black Casting Resin – 2 Gallon Kit

$180.00

Same Day Shipping: Orders Placed Before 2pm PT M-F

Canadian Customers click here for shipping details.

AeroMarine Products Black Urethane Polymer Casting Resin is a thin, very fast setting polymer used for casting parts for many applications.
It features a simple “one to one” mix ratio by volume.
It contains no fillers, has low odor, and cures to a deep black color.
Also, our black urethane polymer casting resin is easily painted.
AeroMarine Polymer Urethane Black Super Fast Casting Resin is a deep black color.
It sets to a hard polymer form and is very tough and impact resistant.
Our Black Casting Resin somewhat resembles PVC pipe when cured.
Shrinkage is usually unmeasurable.
2 gallon kit, smaller and larger sizes available.

DESCRIPTION
HOW-TO
SHIPPING & RETURNS
PURCHASE NOW
TDS

PRODUCT DESCRIPTION

Features:

Low Viscosity
Low odor
Low shrinkage
Good chemical resistance
Excellent electrical and mechanical properties
Attractive black color
Virtually bubble free
High dielectric strength – useful for electronic potting

Main Applications:

Casting figurines
Casting fishing lures
Potting electronic assemblies
Taxidermy applications
Casting industrial parts

Specifications:

Mixed viscosity: 100 cps (Almost water thin)
Color: Black
Work life: 1 minute @70F
Demold time: 15 Minutes@70F
Hardness: 75- 80 Shore D (Very hard)
Flexural Strength 8200psi
Tensile Strength 5840psi
Dielectric Strength >400 volts per .001”
Specific Gravity 1.09
Specific Volume 28 cubic inches per pound

HOW-TO:

Mixing:

Both Part A and B should be at room temperature; 70F, before use.
Part B should be shaken prior to use.
Mix equal parts (1:1) by volume.
Measure in 2 separate clean plastic cups and pour into a 3rd clean plastic cup.
Stir immediately for 20-30 seconds, taking care to scrape the sides and bottom of the mixing
container.
To avoid excessive exotherm, mix small batches until you are familiar with using this material.
Since all urethanes are moisture sensitive, any filler used must be moisture free.
This product is not UV resistant when cured. If the finished piece is going to be exposed to direct sunlight, it needs to be painted or sealed with a UV resistant urethane, like Kylon’s Make-It-Last.
Do not disturb the mold until the part is ready to be demolded.
Prematurely demolding parts can cause deformation, especially in thin areas. Work life and
cure time can be significantly affected by several variables, including size of mix, part shape, ambient temperature, temperature of the mold, filler content and age of material.
For enhanced characteristics, you can post cure this resin at 125F for 2 to 4 hours.
Thin or detailed parts should be cured in their silicone molds or supported by other means.

Tips:

Always wear a respirator or self –contained breathing apparatus when working with urethanes
Do NOT spray. Our urethanes are only for pouring applications.
Urethanes are moisture-sensitive. Do not use paper, wax or wood mixing tools. Always re-cap
container immediately!
Do not use on rainy or humid days.
Urethanes are very moisture sensitive and moisture contamination will give your casting resin
bubbles.

Mix everything twice- Mix the two components together in a clean plastic container, then transfer the mixture to another clean plastic container and mix them again. The theory is that the liquids clinging to the sides and bottom of the containers don’t get mixed well. By transferring the mixture to another clean plastic container, you are assured that everything is well mixed. Any unmixed material stays in the first container. **When using very fast, water-thin black casting resin, you may only have time to mix it once, but since it is water-thin, it will probably mix fine in one mix.
Never mix less than about 3 ounces of product. When manufacturers design and test their resins, they normally write the specifications for 100 gram batches, which is about 3 ounces.
There are two things that can go wrong when mixing a smaller batch. It is much more difficult to get the correct mix ratio when working with very small amounts. Also, these mixtures are exothermic, meaning they generate heat in order to cure. A mixture of less than three ounces does not generate much heat and can take significantly longer to cure.
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. They can also whip air into the resin causing air bubbles. It is always best to mix the material by hand, with a plastic mixing utensil.
If you use an aerosol mold release, let it dry first. A spray can of mold release contains a lot of solvents and propellants. These compounds need to evaporate off the surface so they don’t cause bubbles. Check the dry time of the mold release from the directions on the label. Once your casting resin is cured, you may want to wash it with a grease dissolving soap, like Dawn dish soap. This will help clean the surface of the resin for better paint adhesion.
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 casting resin. Avoid waxed paper cups because the wax may melt and contaminate the resin.
How to avoid air bubbles- 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 resin 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 casting a large part, 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.
Test- Consider the first piece you pour to be a test cast. The first pour will tell you about the cure time, demold time and other aspects of your project.

Technical Data Sheets (TDS)

Download

SHIPPING AND RETURNS

Shipping
Via UPS 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!

Featured Products

Shop by Project

Shop by Color

Accessories & Guides

Featured Products

Shop by Project

Shop by Color

Featured Products

Shop by Project

Shop by Type

Accessories & Guides

Featured Products

Shop by Project

Shop by Type

Accessories and Guides

Featured Products

Shop by Project

Shop by Color

Accessories & Guides

Featured Products

Shop by Project

Shop by Material

Shop by Color

Featured Products

Shop by Project

Calculators

Black Casting Resin – 2 Gallon Kit

Features:

Main Applications:

Specifications:

Canadian Customers**