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Polyurethane Epoxy Resin

Polyurethane Epoxy Resin

4.9(74 ratings)

Best price now

$42.99at Let's ResinChecked Nov 9

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Price facts

  • Last seen at $42.99 at Let's Resin on Nov 9.
  • Our take on the Polyurethane Epoxy Resin

    This is a two-part polyurethane casting resin that cures to a solid, opaque white plastic in about 10 minutes, with a 2-minute working time. It mixes 1:1 by volume or weight, pours thin enough to fill fine detail without a pressure pot, and cures with low odor and little shrinkage. The fast set suits batch casting and quick prototypes, while the short pot life punishes slow or fussy pours. Compared with slower epoxy resins, it trades working time for speed and a white, machinable finish rather than a clear one.

    Best forMakers casting small parts in batchesBeginners wanting simple 1:1 mixingPrototype and figurine work needing fast turnaroundFinishing pieces that get sanded, drilled or painted
    Pros
    • Cures in as little as 10 minutes
    • 2-minute working time speeds up batch casting
    • Low viscosity fills fine detail without trapped air
    • Simple 1:1 mix by volume or weight
    • Low odor and minimal shrinkage
    • Cured parts are tough, waterproof and machinable
    Cons
    • 2-minute pot life leaves little room for slow pours
    • Opaque white only, not a clear cast
    • Short working time makes large or complex molds hard
    • Demands quick, accurate mixing and pouring

    Polyurethane Epoxy Resin prices at every store

    • Let's ResinNew

      In stockShips from Hong Kong SAR China · duties may applyReturn policy

      $42.99Checked Nov 9
      Visit Let's Resin

    What reviewers say

    • 4.9 / 574 ratings

    Rated 4.9 out of 5 across 74 ratings, buyers are highly positive about the fast cure and easy 1:1 mixing. The recurring caution is the very short working time, which rewards quick, well-prepared pours.

    What people mention
    • Cure speedPraisedBuyers like that casts harden in minutes, so batches finish quickly.
    • Working timeCriticisedThe 2-minute pot life is called out as tight for bigger or complex molds.
    • Mixing ratioPraisedThe 1:1 mix by volume or weight is described as easy and forgiving.
    • BubblesPraisedThe thin consistency is said to fill detail without a pressure pot.
    • FinishingPraisedCured parts are reported to sand, drill and paint well.

    About the Polyurethane Epoxy Resin

    This is a two-part polyurethane epoxy casting resin. It cures from liquid to a solid, opaque white plastic in as little as 10 minutes, with a working time of 2 minutes. It is used for rubber molds and precision casting, including prototype models, sculptures, figurines, special-effects props, decorative jewelry and small functional parts.

    The resin has a low viscosity and flows into fine details without trapping air. No pressure pot or vacuum chamber is needed. Part A and Part B are mixed 1:1 by volume or weight. It has very low odor and minimal shrinkage.

    The resin can be tinted before casting or painted after curing. Cured pieces are lightweight, tough and waterproof. They can be sanded, drilled or machined.

    Type
    Two-part polyurethane epoxy casting resin (Part A and Part B)
    Mix ratio
    1:1 by volume or weight
    Working time
    2 minutes
    Cure time
    As little as 10 minutes
    Cured color
    Opaque white
    Viscosity
    Low
    Odor
    Ultra-low
    Shrinkage
    Minimal
    Finishing
    Can be tinted before casting, painted after curing, sanded, drilled or machined
    Cured properties
    Lightweight, tough, waterproof
    Uses
    Rubber molds, prototype models, sculptures, figurines, special-effects props, decorative jewelry, small functional parts

    Questions and answers

    How fast does it cure?
    It turns from liquid to solid opaque white in as little as 10 minutes. The working time before it starts to set is about 2 minutes, so mix and pour promptly.
    Do I need a pressure pot or vacuum chamber?
    No. The low-viscosity mix flows into fine detail and is described as bubble-free without either. Stir slowly to limit air.
    What mixing ratio does it use?
    Mix Part A and Part B 1:1 by volume or by weight. Measure carefully, since the short working time leaves little chance to correct a bad mix.
    Can I tint or paint it?
    Yes. Tint the resin before casting or paint the cured piece. It cures opaque white, so it is not a clear casting resin.
    Is it good for large molds?
    It suits small parts and batch casting best. The 2-minute working time makes large or intricate molds hard to fill before it sets.
    How tough are the finished parts?
    Cured pieces are lightweight, tough and waterproof, and can be sanded, drilled or machined for finishing.
    Where is the Polyurethane Epoxy Resin cheapest?
    At Let's Resin, for $42.99, as of our latest check.
    What do buyers say about the Polyurethane Epoxy Resin?
    Rated 4.9 out of 5 from 74 ratings.

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