Polyester Finishing Resin
Polyester Finishing Resin
Wrap up your project with a smooth, professional finish using UltraMarine's 100% Orthophthalic Polyester Finishing Resin (with wax). Designed as the final layer, it cures hard and tack-free—so you get a clean, sandable surface without any extra steps. Whether you're sealing fiberglass or adding that final protective coat, this resin makes it easy to get great results.
Features & Benefits:
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Tack-free finish – Wax additive rises to the surface, creating a fully cured, non-sticky layer
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Smooth, sandable surface – Ideal for prepping before painting or polishing
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Strong, protective coating – Adds durability and seals fiberglass effectively
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Easy to apply – Wets out evenly for a consistent finish
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Time-saving – No need for additional sealing coats
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Versatile use – Great for repairs, sealing, and final coats on composite projects
Technical Details:
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Resin Type: Orthophthalic Polyester Finishing Resin
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Catalyst: MEKP required (included)
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Mix Ratio: Typically 1–2% MEKP by weight
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Viscosity: Medium-low for good flow and surface leveling
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Gel Time: 30-40 minutes depending on catalyst ratio (1%) and temperature
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Cure Time: Tack-free in 2 hours at 176 F; full cure within 24 hours
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Finish: Hard, fully cured (non-tacky) surface due to wax additive
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Compatibility: Suitable for use over fiberglass mat, cloth, and laminating resin layers
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Application Methods: Brush, roller, or pour
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Application Temperature: 65–85°F (18–30°C) recommended
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Shelf Life: Up to 6 months when sealed properly and stored in a cool, dry place
Details
This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.
Shipping & Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.
We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.
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