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RESION Polyester laminating resin

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At a glance

  • Can be processed from 12°C
  • 30 min. potlife
  • For use with fibreglass mat
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m²
layers

Complete all fields with valid values. Use a comma or point for decimals and whole numbers of 1 or more for layers.

Using more than one reinforcement material? Calculate the resin required for each material separately and add the results together.
Please note: Estimate for hand lay-up using one reinforcement type. The resin quantity excludes MEKP hardener; the required 2% hardener is shown separately. Not for resin infusion. Allow for application losses and follow the product instructions for your application and substrate.

RESION Polyester Laminating Resin is an orthophthalic polyester resin designed for laminating with fibreglass and for creating and repairing polyester structures. Use the resin in combination with chopped strand mat (CSM) for repairs to boats, car spoilers, carnival floats, motorcycle seats, model-making projects, swimming pools and ponds.

The laminating resin has excellent fibre wet-out properties, allowing it to penetrate the fibreglass easily. The resin does not drain out of the fibres quickly, and trapped air can be easily removed during lamination. A blue colour indicator makes application easier by helping you check whether MEKP hardener has been added to the polyester resin.

Benefits of Polyester Laminating Resin

  • Suitable for laminating and repairs with chopped strand mat (CSM).
  • Excellent fibreglass wet-out properties.
  • Blue colour indicator to check whether hardener has been added.
  • Approximately 30 minutes working time at 20°C.
  • Can be applied at temperatures from 12°C.
  • Suitable for both small repairs and larger polyester structures.
  • Available in sizes ranging from 0.25 kg to 210 kg.

Application instructions

  • Determine the required amount of hardener using the table below (1.5-2.5% MEKP hardener).
  • Add the hardener to the polyester resin and mix thoroughly.
  • The working time is approximately 30 minutes at 20°C.
  • The curing time is 4 to 6 hours at 20°C.

How much MEKP hardener should you add?

The required amount of MEKP hardener depends on the temperature. Use the quantities below as a guideline for RESION Polyester Laminating Resin.

  Hardener
  12-17 °C 18-23 °C 23-30 °C
Resin (PR01): 2.5% 2% 1.5%
0.25 kg 6.25 grams 5 grams 3.75 grams
1 kg 25 grams 20 grams 15 grams
5 kg 125 grams 100 grams 75 grams
20 kg 500 grams 400 grams 300 grams
210 kg 5,250 grams 4,200 grams 3,150 grams

At a normal application temperature of 18 to 23°C, add 2% MEKP hardener. For example, 1 kg of polyester laminating resin requires 20 grams of hardener.

Tips for working with polyester resin

  • Prepare approximately 500 to 1,000 grams of resin at a time due to the limited working time.
  • Mix the MEKP hardener thoroughly into the entire quantity of resin.
  • Take the ambient temperature into account when determining the required amount of hardener.
  • Wear nitrile gloves and suitable respiratory protection, such as an organic vapour respirator, during application.
  • Use approximately 1 kg of polyester resin per m2 when working with a 450 g/m2 fibreglass mat.
  • Want to colour the resin? Use polyester pigment paste.
  • Apply the laminating resin using a fleece roller or disposable brush.

Product properties

The key technical properties clearly listed in one place.

Article number
POL000001
Resin system
Laminate, Repair
Orthophthalic (ORTHO)
From 12 °C
MEKP hardener: 1.5%-2.5%
12 months
MEKP hardener
Approximately 4-6 hours (20 °C)
Net contents
1 kg, 20 kg, 210 kg (drum), 250 g, 5 kg
Pile roller, Disposable brush
Approximately 30 minutes (at 20 °C)

Safety information

Read the warnings and use appropriate protective equipment before handling the product.

Recommended protective equipment

Nitrile gloves
Safety glasses
Vapour respirator when working in an unventilated area
Protective coveralls

Hazard pictograms

Flammable Flammable
Harmful Harmful
Health hazard Health hazard

Warnings and precautions

H226 Flammable liquid and vapour.
H315 Causes skin irritation.
H317 May cause an allergic skin reaction.
H319 Causes serious eye irritation.
H332 Harmful if inhaled.
H335 May cause respiratory irritation.
H361 Suspected of damaging fertility or the unborn child <state specific effect if known> <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
H372 Causes damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
H412 Harmful to aquatic life with long lasting effects.
P101 If medical advice is needed, have product container or label at hand.
P102 Keep out of reach of children.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P270 Do no eat, drink or smoke when using this product.
P314 Get medical advice/attention if you feel unwell.
P308+P313 IF exposed or concerned: Get medical advice/attention.
P405 Store locked up.
P501 Dispose of contents/container in accordance with in accordance with local regulation

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