Video Guide
Resinpal 1705 Polyester Resin – Processing Video
Resinpal 1705 Polyester Resin is a medium-reactive, pre-accelerated standard laminating resin with a tack-free cure – ideal for GRP laminating work in automotive, marine, and sanitary applications. In this video, you will see the practical processing steps explained step by step.
Contents
Technical Data
Resinpal 1705 – Technical Data at a Glance
| Property | Value |
|---|---|
| Product Type | Standard polyester resin (laminating resin) |
| Reactivity | Medium-reactive |
| Condition | Pre-accelerated, ready to use |
| Curing | Tack-free |
| Mixing Ratio | 1.5–2% MEKP hardener |
| Processing Temperature | At least 18 °C |
| Working Time | Approx. 25–30 minutes |
| Curing Time | Approx. 24 hours |
| Solvent-Free | Yes |
| Can Be Pigmented | Yes (polyester pigment pastes) |
| Scope of Delivery | Resin + MEKP hardener |
| Container Sizes | 1 kg, 5 kg, 10 kg, 20 kg, 50 kg, 220 kg |
| Item Number | 1407 |
Step by Step
How to Process Resinpal 1705 Polyester Resin Correctly
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1Prepare the Surface Thoroughly clean, degrease, and dry the surface. Sand old coatings if necessary.
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2Put On Protective Equipment Wear nitrile gloves, safety goggles, and a respirator mask (at least FFP2). Ensure good ventilation.
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3Check the Temperature The room temperature must be at least 18 °C. At lower temperatures, the curing time increases significantly.
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4Measure the Resin Weigh the required amount of resin into a clean mixing cup.
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5Add MEKP Hardener Add 1.5–2% MEKP hardener (15–20 g per 1 kg of resin). At higher temperatures, use closer to 1.5%.
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6Mix Thoroughly Stir evenly for approximately 1–2 minutes, making sure to scrape the sides and bottom of the cup.
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7Apply the Resin Apply evenly with a brush or roller. Place the fiberglass mat and laminate it into the resin.
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8Remove Air Bubbles Roll out air bubbles with a laminating roller. Build up additional layers wet-on-wet.
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9Allow It to Cure Allow approximately 24 hours at room temperature. The surface cures tack-free, so no intermediate sanding is required.
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10Continue Processing After complete curing, sand, paint, or seal the surface with gelcoat or topcoat.
Professional Tips
Tips for Optimal Results
Tip: Use Metal Containers
Resinpal 1705 is supplied in metal containers. This significantly reduces styrene emissions compared with plastic canisters. Close the container securely after removing material.
Resinpal 1705 is supplied in metal containers. This significantly reduces styrene emissions compared with plastic canisters. Close the container securely after removing material.
Tip: Laminate Wet-on-Wet
Multiple layers of fiberglass mat can be laminated directly on top of each other without waiting for intermediate curing. This produces strong laminates without voids.
Multiple layers of fiberglass mat can be laminated directly on top of each other without waiting for intermediate curing. This produces strong laminates without voids.
Tip: Add Color with Polyester Pigment Pastes
Use only polyester-compatible pigment pastes (maximum 5%). Epoxy pigment pastes are unsuitable and may interfere with curing.
Use only polyester-compatible pigment pastes (maximum 5%). Epoxy pigment pastes are unsuitable and may interfere with curing.
Safety
Safety Instructions
⚠ Important Information:
Resinpal 1705 contains styrene (H226, H315, H319). The MEKP hardener is classified as a hazardous substance (H225, H360F, H373). Always work in well-ventilated areas, wear appropriate protective equipment, and avoid contact with skin and eyes. Keep away from heat sources and open flames. For professional use only (German Chemicals Prohibition Ordinance).
Resinpal 1705 contains styrene (H226, H315, H319). The MEKP hardener is classified as a hazardous substance (H225, H360F, H373). Always work in well-ventilated areas, wear appropriate protective equipment, and avoid contact with skin and eyes. Keep away from heat sources and open flames. For professional use only (German Chemicals Prohibition Ordinance).
Avoid Mistakes
Common Processing Mistakes
- Too little hardener: The resin does not cure completely or remains tacky.
- Too much hardener: Overheating, bubble formation, and a brittle laminate.
- Environment too cold: Below 18 °C, the curing reaction slows considerably.
- Poor mixing: Uncured areas and uneven curing.
- Mixing too much material: The resin gels prematurely in the cup due to heat buildup.
- Air bubbles not removed: Weak spots in the laminate – use an air-release roller.
- Poor surface preparation: Grease or moisture causes adhesion problems.
FAQ
Frequently Asked Questions About Resinpal 1705 Polyester Resin
What is the difference between Resinpal 1705 and 1715?
Resinpal 1705 is a standard laminating resin with medium reactivity, while Resinpal 1715 is a styrene-reduced version with less odor. Both cure tack-free and are suitable for GRP laminating work.
How much MEKP hardener should I add?
Add 1.5–2% MEKP hardener, which equals 15–20 g per 1 kg of resin. At higher ambient temperatures, use closer to the lower limit.
How long is the working time?
At 20 °C with 2% hardener, the working time is approximately 25–30 minutes. Mix only as much material as you can process within this time.
When can I apply additional laminate layers?
Thanks to wet-on-wet processing, additional layers can be applied immediately. After complete curing (24 hours), no intermediate sanding is required.
Can I use Resinpal 1705 for ponds and pools?
Yes, Resinpal 1705 is suitable for building and repairing ponds, pools, and sanitary installations. For areas exposed to water, a final gelcoat seal is recommended.
Is the resin suitable for beginners?
Yes. Its tack-free cure and moderate reactivity make it beginner-friendly. However, all protective measures and safety instructions must still be followed.
Can I add color to the resin?
Yes, by using polyester pigment pastes at a maximum of 5%. Do not use epoxy pigment pastes.
Why are metal containers used?
Metal containers prevent the styrene emissions that can occur with plastic canisters, making the product more pleasant and lower-odor to handle.
How should I store the resin?
Store it in a cool (10–20 °C), dry, and dark place. Close the container securely after removing material. Typical shelf life is 6–12 months.
Can I use Resinpal 1705 for automotive body repairs?
Yes, it is suitable for body repairs with fiberglass mat. For highly stressed structural areas, epoxy resin may be preferable.
What should I do after processing?
Clean tools immediately with acetone. Dispose of leftover resin and hardener separately as hazardous waste. Never pour them down the drain.
Buy Resinpal 1705 Polyester Resin Now
Available from 1 kg to 220 kg – ready for immediate delivery, including MEKP hardener
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