Downloads (2)

This is a chemical product. Before storage or use you must download and read the accompanying safety and technical datasheets.

Safety Datasheet (SDS)1 MB
Technical Datasheet (TDS)526 KB

Specification

Product Data
ColourBeige
Initial Cure Time2Hrs
Chemistry / MaterialVinylester
Viscosity800mPa.s
Pot Life (Typical)17mins
Cured Mechanical Properties
FlexibilityHard / Rigid
Hardness80 (Hard)Shore D
Max Service Temp90°C
Tensile Strength120MPa
Flexural Strength149.6MPa
Flexural Modulus8.3GPa
Elongation at Break3.0 - 4.0%
General Properties
Gross Weight1.158kg

Shipping Information

In the currently selected pack size, this product is classed as 'Limited Quantity Dangerous Goods' for the purposes of transport. This means that transport restrictions apply to certain destinations.

No restrictions or surcharges shipping by road to:

UK, Ireland, Channel Islands, Isle of Man, Austria, Belgium, France, Germany, Luxembourg, Monaco, Netherlands, Norway, Finland, , Czech Republic, Denmark, Hungary, Italy, Poland, Portugal, Spain, Andorra, Switzerland, Estonia, Latvia, Lithuania, Slovakia, Slovenia, Sweden

Shipping possible by airfreight (£55 surcharge applies) to:

United States, Finland, Bahrain, Hong Kong, Japan, Republic of Korea, Kuwait, Singapore, Taiwan, United Arab Emirates, Trinidad and Tobago

Can't ship to:

All other countries. If your country is not listed above then unfortunately we can't ship this product to you.

For very large orders, specialist shipping can be arranged. Please contact us to discuss.

Uni-Mould Coupling Coat

High performance, unfilled vinylester laminating resin. Uni-Mould Coupling Coat offers excellent cured mechanical properties, low shrinkage, high service temperature and excellent chemical resistance. It can be used on its own as a vinylester laminating resin or as the coupling layer in the Uni-Mould rapid tooling system.

Requires MEKP catalyst, not included. Available to buy online in 1kg, 5kg or 25kg tins.


PRODUCT VERSIONS

Pack Size

AVAILABILITY:More than 20 availablefor immediate shipping


PRICE
£16.42inc. VAT
(£16.42 /KG)
More than 20 availablefor immediate shipping
QTY
EACH
EACH
We won’t be beaten on price!

If you believe you’re buying an equivalent product cheaper elsewhere, contact us to discuss your requirements.

Uni-Mould Coupling Coat is part of the Uni-Mould universal mould making system and should be used in conjunction with Uni-Mould Tooling Gel Coat and Uni-Mould Tooling Resin to produce hard-wearing, polishable moulds of any size with zero shrinkage suitable for use in just about any composites process.

Uni-Mould Coupling Coat is a vinylester laminating resin.

Requires MEKP catalyst (not included)

Suggested Purchasing Quantities

Use the table below to help you purchase suitable quantities of the resins and glass for a given mould size.

For full details on the Uni-Mould system, read our Uni-Mould Introduction and Application Guide.


Uni-Mould Resin Chopped Strand Mat
The table is NOT an exact guide to the ratios of the materials but is rounded up to the nearest purchasable pack size or weight of mat.
Mould Area Tooling Gel Coupling Coat Tooling Resin 100g 450g
0.6sqm 1kg 1kg 5kg 2sqm 2kg
3.5sqm 5kg 5kg 25kg 7sqm 7kg
13sqm 10kg 25kg 100kg 26sqm 25kg

Further Information

Application

The Uni-Mould Coupling Coat is designed to eliminate print-through of the mould reinforcement, to reduce the risk of blisters underneath the gel coat by ensuring the gel is reinforced with a skin of resin and glass and to provide an ideal substrate for the main reinforcement.

Uni-Mould Coupling Coat should be catalysed with standard MEKP catalyst (not included) at 1.5 - 2%. Apply a layer of the coupling coat over the mould surface and then two layers of 100g chopped strand mat . We do not recommend the use of glass surface tissue in lieu of the 2 layers of 100g CSM.

Wet out the CSM thoroughly with the coupling coat resin and ensure that all air is removed from the reinforcement, that it is well wetted through and that the reinforcement is conforming to all the contours of the mould, particularly any tight corners.

Uni-Mould Tooling Coupling Coat should applied to cured Uni-Mould Tooling Gel Coat and then be reinforced with Uni-Mould Tooling Resin as per the guidelines for those products.

Use with Prepregs

Although it is possible to use Uni-Mould moulds with out-of-autoclave (oven cure) prepregs (such as XPREG® XC110) we no longer recommend Uni-Mould moulds for this purpose.

Instead – for prepreg use – better results will be achieved using high temperature epoxy moulds made using our EG160 / EMP160 tooling system or XPREG® XT135 Tooling Prepreg. These high temperature epoxy tooling systems allow the prepreg to be cured at the optimum 120°C which reduces the cure time and improves the mechanical properties of the component. Additionally, epoxy tools have been found to result in a better surface finish with prepregs such as XPREG® XC110.

Key Processing Information

  • Ease of Use
  • Suitable for professional and hobby use (follow SDS advice).
  • Odour
  • Coupling Coat has a strong styrene based odour.
  • Safety Precautions
  • Wear gloves and goggles and work in a well ventilated area. Always read the SDS before use.
  • Ambient Conditions
  • Can be used from 15 to 30°C although pot-life and cure time will be affected significantly. Recommended working at an ambient of 20-25°C.
  • Degassing
  • Not necessary in most cases. Simply mix and use.
  • Mix Ratio
  • Add MEKP Catalyst at a ratio of 1.5 - 2%. Use digital scales.
  • Mixing
  • Mix thoroughly by hand for at around 2 minutes.
  • Application
  • Can be applied by brush. Apply over mould surface with 2 layers of 100g CSM.
  • Pot-Life
  • The pot life at 25°C is 15 - 20 minutes. Be sure to use your resin before this time.
  • Exotherm (Over-Heating)
  • Resin will heat-up whilst it cures. Mix in small batches and use expediently. Mixed resin in a pot will quickly overheat (exotherm) and can smoke/ignite. Never leave mixed resin unattended.
  • Cure Time/Demould<
  • You can back up with Tooling Resin as soon as the Coupling Coat has Gelled. Typically this can take 1.5 - 3 hours depending on temperature and MEKP ratio.
  • Maximum Service Temperature
  • When fully cured and post cured, the maximum Service Temerpature of Uni-Mould moulds is 90°C
  • Overcoating / Second coatings
  • Coupling Coat is normally applied in one session with 2 layers of 100g CSM.
  • Shelf Life
  • Uni-Mould Coupling coat has a shelf-life of 3 months.

Uni-Mould Coupling Coat is part of the Uni-Mould universal mould making system and should be used in conjunction with Uni-Mould Tooling Gel Coat and Uni-Mould Tooling Resin to produce hard-wearing, polishable moulds of any size with zero shrinkage suitable for use in just about any composites process.

Uni-Mould Coupling Coat is a vinylester laminating resin.

Requires MEKP catalyst (not included)

Suggested Purchasing Quantities

Use the table below to help you purchase suitable quantities of the resins and glass for a given mould size.

For full details on the Uni-Mould system, read our Uni-Mould Introduction and Application Guide.


Uni-Mould Resin Chopped Strand Mat
The table is NOT an exact guide to the ratios of the materials but is rounded up to the nearest purchasable pack size or weight of mat.
Mould Area Tooling Gel Coupling Coat Tooling Resin 100g 450g
0.6sqm 1kg 1kg 5kg 2sqm 2kg
3.5sqm 5kg 5kg 25kg 7sqm 7kg
13sqm 10kg 25kg 100kg 26sqm 25kg

Further Information

Application

The Uni-Mould Coupling Coat is designed to eliminate print-through of the mould reinforcement, to reduce the risk of blisters underneath the gel coat by ensuring the gel is reinforced with a skin of resin and glass and to provide an ideal substrate for the main reinforcement.

Uni-Mould Coupling Coat should be catalysed with standard MEKP catalyst (not included) at 1.5 - 2%. Apply a layer of the coupling coat over the mould surface and then two layers of 100g chopped strand mat . We do not recommend the use of glass surface tissue in lieu of the 2 layers of 100g CSM.

Wet out the CSM thoroughly with the coupling coat resin and ensure that all air is removed from the reinforcement, that it is well wetted through and that the reinforcement is conforming to all the contours of the mould, particularly any tight corners.

Uni-Mould Tooling Coupling Coat should applied to cured Uni-Mould Tooling Gel Coat and then be reinforced with Uni-Mould Tooling Resin as per the guidelines for those products.

Use with Prepregs

Although it is possible to use Uni-Mould moulds with out-of-autoclave (oven cure) prepregs (such as XPREG® XC110) we no longer recommend Uni-Mould moulds for this purpose.

Instead – for prepreg use – better results will be achieved using high temperature epoxy moulds made using our EG160 / EMP160 tooling system or XPREG® XT135 Tooling Prepreg. These high temperature epoxy tooling systems allow the prepreg to be cured at the optimum 120°C which reduces the cure time and improves the mechanical properties of the component. Additionally, epoxy tools have been found to result in a better surface finish with prepregs such as XPREG® XC110.

Key Processing Information

  • Ease of Use
  • Suitable for professional and hobby use (follow SDS advice).
  • Odour
  • Coupling Coat has a strong styrene based odour.
  • Safety Precautions
  • Wear gloves and goggles and work in a well ventilated area. Always read the SDS before use.
  • Ambient Conditions
  • Can be used from 15 to 30°C although pot-life and cure time will be affected significantly. Recommended working at an ambient of 20-25°C.
  • Degassing
  • Not necessary in most cases. Simply mix and use.
  • Mix Ratio
  • Add MEKP Catalyst at a ratio of 1.5 - 2%. Use digital scales.
  • Mixing
  • Mix thoroughly by hand for at around 2 minutes.
  • Application
  • Can be applied by brush. Apply over mould surface with 2 layers of 100g CSM.
  • Pot-Life
  • The pot life at 25°C is 15 - 20 minutes. Be sure to use your resin before this time.
  • Exotherm (Over-Heating)
  • Resin will heat-up whilst it cures. Mix in small batches and use expediently. Mixed resin in a pot will quickly overheat (exotherm) and can smoke/ignite. Never leave mixed resin unattended.
  • Cure Time/Demould<
  • You can back up with Tooling Resin as soon as the Coupling Coat has Gelled. Typically this can take 1.5 - 3 hours depending on temperature and MEKP ratio.
  • Maximum Service Temperature
  • When fully cured and post cured, the maximum Service Temerpature of Uni-Mould moulds is 90°C
  • Overcoating / Second coatings
  • Coupling Coat is normally applied in one session with 2 layers of 100g CSM.
  • Shelf Life
  • Uni-Mould Coupling coat has a shelf-life of 3 months.

Downloads (2)

This is a chemical product. Before storage or use you must download and read the accompanying safety and technical datasheets.

Safety Datasheet (SDS)1 MB
Technical Datasheet (TDS)526 KB

Specification

Product Data
ColourBeige
Initial Cure Time2Hrs
Chemistry / MaterialVinylester
Viscosity800mPa.s
Pot Life (Typical)17mins
Cured Mechanical Properties
FlexibilityHard / Rigid
Hardness80 (Hard)Shore D
Max Service Temp90°C
Tensile Strength120MPa
Flexural Strength149.6MPa
Flexural Modulus8.3GPa
Elongation at Break3.0 - 4.0%
General Properties
Gross Weight1.158kg
Can’t find the answer you’re looking for?Ask our technical team a question.

The reason we can’t ship MEKP outside of the UK is because it is highly oxidizing, and standard carrier services do not permit it to be transported.

However you can purchase MEKP from any suppliers of composite materials including fibreglass (GRP) shops, roofing suppliers, boat buildings, car bodyshops etc. There is nothing special about the MEKP we supply, you can ask at your local supplier for ‘Standard reactivity MEKP’; brands such as Andanox KP9, Akperox A30, Butanox M50 (Akzo Nobel) are all suitable and  widely available.

Yes, you will need MEKP Catalyst to cure any of our Uni-Mould resins, including the Tooling Gelcoat. You can order the MEKP from the product page and can also find the MEKP separately here: MEKP Catalyst

The Uni-Mould Coupling Coat can be backed up with tooling resin and CSM as soon as it is tacky and up to 48 hours later. The time for the resin to become tacky varies depending on catalyst ratio and ambient temperature but typically we would expect around 2hrs after application if using 2% catalyst in a typical 20°C ambient temperature.

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Shipping Information

In the currently selected pack size, this product is classed as 'Limited Quantity Dangerous Goods' for the purposes of transport. This means that transport restrictions apply to certain destinations.

No restrictions or surcharges shipping by road to:

UK, Ireland, Channel Islands, Isle of Man, Austria, Belgium, France, Germany, Luxembourg, Monaco, Netherlands, Norway, Finland, , Czech Republic, Denmark, Hungary, Italy, Poland, Portugal, Spain, Andorra, Switzerland, Estonia, Latvia, Lithuania, Slovakia, Slovenia, Sweden

Shipping possible by airfreight (£55 surcharge applies) to:

United States, Finland, Bahrain, Hong Kong, Japan, Republic of Korea, Kuwait, Singapore, Taiwan, United Arab Emirates, Trinidad and Tobago

Can't ship to:

All other countries. If your country is not listed above then unfortunately we can't ship this product to you.

For very large orders, specialist shipping can be arranged. Please contact us to discuss.

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