
MR. JO Gelkot-WHT : High-Performance White Epoxy Gelcoat for Molds, Stencils & Foundry Patterns
When precision, visual clarity, and durability matter in mold making or surface tooling, MR. JO Gelkot-WHT steps up as a versatile and fast-curing epoxy gelcoat system. With its high-viscosity, thixotropic nature, and dense white finish, this two-component gelcoat is designed to create smooth, hard-wearing mold surfaces for a range of industries — from ceramics and stenciling to industrial lamination tools and foundry applications.
đź§© The Challenge at Many Sites
Waterproofing failures often stem from an unexpected source: the water added during mixing. On-site dilution with hard water, unmeasured quantities, or inconsistent mixing can compromise the final film.
Even the best epoxy systems can falter if a careless mix leads to chalky coatings, patchy curing, or poor bonding. Especially in large projects, controlling field variables becomes a challenge.
⚪ Key Features
🖌️Thixotropic Consistency – Stays in place on vertical and complex surfaces with ease.
⏱️Fast Curing at Room Temperature – Improves productivity without compromising finish quality.
🧪Excellent Chemical Resistance – Ideal for harsh industrial environments.
🧲Strong Bonding & Surface Finish – Delivers a polished, hard, and abrasion-resistant coating.
🪞Polishable and Grindable – Achieves fine finishes where surface appearance is critical.
🌱Solvent-Free Formula – Safer application, low odor, environmentally friendlier

đź§Ş Technical Properties
Property | Value |
Color | White |
Mixing Ratio (PBW) | 100:14 |
Pot Life @ 25°C | 20–30 minutes |
Mixture Consistency | Thixotropic paste |
Optics | Opaque |
Cure Type | Room temperature |
đź§° Recommended Applications
🎯 Stencil Making & Tool Templates
Ideal for repeat-use stencils, where edge definition and abrasion resistance matter.
🔍 Mold Negatives & Laminating Tools
Forms a high-integrity skin for laminating molds — especially where color contrast helps in visual inspections.
⚙️ Foundry Patterns
Smooth finish, high dimensional stability, and abrasion resistance make it perfect for foundry use.
đź§Ş Ceramic Working Models
Commonly used in sanitaryware and ceramic mold building where fine detail replication is critical.
đź”§ Mold Repairs & Re-coats
Can be used to recoat or touch up worn-out gelcoat surfaces, providing an extended mold lifecycle.

✨ Why Choose MR. JO Gelkot-WHT?
- Brilliant White Finish
Provides a clean, neutral background for inspection, alignment, or composite layup. - Strong Yet Workable
Once cured, surfaces can be cut, sanded, or polished to the desired shape and finish. - Fast & Efficient
Cures quickly at ambient conditions, enabling same-day processing and lamination in most climates. - Precision-Ready
Its high thixotropy allows controlled application even on detailed or vertical geometries without slumping. - Reliable Surface Integrity
Excellent chemical and thermal stability ensures longevity even under repeated demolding stress.
🛠️ How to Use
- Surface Prep: Ensure the master/model is free from contaminants and release agents.
- Mixing: Combine 100 parts resin to 14 parts hardener (by weight) thoroughly.
- Application: Use a brush or spatula to apply an even 1–2 mm coating.
- Curing: Allow to cure at room temperature in a clean, dust-free environment.
- Topcoat/Lamination: For mold making, follow with glass fiber layup once tack-free.
📦 Packaging & Availability
- Supplied in easy-to-handle packs suitable for manual and professional applications.
- Custom bulk quantities available upon request.
⚠️ Storage & Safety
- Store in original, tightly sealed containers at 18–25°C.
- Use standard PPE including gloves and eye protection.
- Refer to the SDS for detailed safety and disposal information.
MR. JO Gelkot-WHT is the trusted gelcoat for professionals working in ceramics, composites, foundries, and model-making. Its fast cure, abrasion resistance, and excellent chemical stability, combined with a visually clean white finish, make it the go-to epoxy gelcoat for applications where appearance meets performance. Designed to deliver strong, stable, and smooth surfaces — every time.
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