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
ColourBlack
Chemistry / MaterialVinylester
Viscosity7000mPa.s
Pot Life (Typical)15mins
Initial Cure Time4Hrs
Cured Mechanical Properties
Max Service Temp90°C
Hardness70 (Hard)Shore D
FlexibilityHard / Rigid
Tensile Strength38.58MPa
Flexural Strength155.2MPa
Flexural Modulus3.44GPa
Elongation at Break2.1%
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 Tooling Gelcoat

Uni-Mould Tooling Gelcoat is a hard-wearing yet highly polishable vinylester gelcoat for composite moulds and tools. Its high service temperature and compatibility with epoxy resin make it the perfect mould surface for the production of epoxy components, including resin infusion and even some low cure-temperature prepregs.

This high performance tooling gelcoat can be used as a gelcoat for conventional fibreglass mould production, or as part of 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:13 in stock available for immediate shipping

176 more can built in 2-3 days


PRICE
£18.90inc. VAT
(£18.90 /KG)
13 in stock available for immediate shipping
QTY
EACH
EACH
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Uni-Mould Tooling Gelcoat is part of the Uni-Mould™ universal mould making system and should be used in conjunction with Uni-Mould Coupling 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.

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

Uni-Mould Tooling Gelcoat is a filled, vinylester tooling Gelcoat compatible with epoxy, polyester and vinylester resin systems meaning that parts made using any of these resin systems will reliably release from moulds made with a Uni-Mould Tooling Gelcoat surface.

Moulds made using Uni-Mould are fully compatible with all widely used resin systems (including epoxy, polyester and vinylester).

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.

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

Uni-Mould Tooling Gelcoat should be catalysed at 1.5-2% using standard MEKP catalyst (not included). Before application allow the catalysed Gelcoat to stand for a few minutes to settle and de-gas.

The vinylester gelcoat should be applied in two applications. For the first application aim for a consistent thickness of 0.3–0.4mm. Allow the first application to cure for around 2-3hrs (at 20°C room temperature) before applying the second coat of Gelcoat, again aiming for a thickness of 0.3 - 0.4mm.

Allow the gelcoat to cure for a minimum of 4hrs (at 20°C room temperature), preferably overnight.

Uni-Mould Tooling Gelcoat should then be backed up with Uni-Mould Coupling Coat and 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.

Compatibility Information - Dos and Don'ts

Although by no means an exhaustive list, the Pattern materials, release agents and additives listed below have all been tested and are known to work well with Uni-Mould Tooling Gelcoat.

  • Compatible Patterns
  • Pattern Coat Primer
  • Pattern Coat High Gloss
  • Epoxy and Polyester resin based patterns (with suitable release agent)
  • Polypropylene and polyethylene sheet
  • Aluminium (with suitable release agent)
  • Toughened Glass (with suitable release agent)
  • Compatible Release Agents
  • Easy-Lease Chemical Release Agent
  • PVA Mould Release
  • No 8 Mould Release Wax
  • Compatible Additives
  • Solution MW Wax Additive

Key Processing Information

  • Ease of Use
  • Suitable for professional and hobby use (follow SDS advice)./li>
  • Odour
  • UMTGC has a strong styrene based odour./li>
  • Safety Precautions
  • Wear gloves and goggles and work in a well ventilated area. Always read the SDS before use./li>
  • 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./li>
  • Degassing
  • Not necessary in most cases. Simply mix and use./li>
  • Mix Ratio
  • Add MEKP Catalyst at a ratio of 1.5 - 2%. Use digital scales./li>
  • Mixing
  • Mix thoroughly by hand for at around 2 minutes./li>
  • Application
  • Can be applied by brush. Coating thickness 0.3 - 0.4mm. Minimum of two coatings recommended./li>
  • Pot-Life
  • The pot life at 25°C is 15 minutes. Be sure to use your resin before this time./li>
  • 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./li>
  • Cure Time/Demould
  • At 20°C allow the gelcoat to cure for a minimum of 4 hours, preferably overnight before backing with Coupling Coat./li>
  • Overcoating / Second coatings
  • We recommend 2 coatings of 0.3 - 0.4mm per coating for best results./li>
  • Maximum Service Temperature
  • When fully cured and post cured, the maximum Service Temerpature of Uni-Mould moulds is 90°C/li>
  • Shelf Life
  • Uni-Mould tooling gelcoat has a shelf-life of 4 months. /li>

Uni-Mould Tooling Gelcoat is part of the Uni-Mould™ universal mould making system and should be used in conjunction with Uni-Mould Coupling 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.

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

Uni-Mould Tooling Gelcoat is a filled, vinylester tooling Gelcoat compatible with epoxy, polyester and vinylester resin systems meaning that parts made using any of these resin systems will reliably release from moulds made with a Uni-Mould Tooling Gelcoat surface.

Moulds made using Uni-Mould are fully compatible with all widely used resin systems (including epoxy, polyester and vinylester).

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.

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

Uni-Mould Tooling Gelcoat should be catalysed at 1.5-2% using standard MEKP catalyst (not included). Before application allow the catalysed Gelcoat to stand for a few minutes to settle and de-gas.

The vinylester gelcoat should be applied in two applications. For the first application aim for a consistent thickness of 0.3–0.4mm. Allow the first application to cure for around 2-3hrs (at 20°C room temperature) before applying the second coat of Gelcoat, again aiming for a thickness of 0.3 - 0.4mm.

Allow the gelcoat to cure for a minimum of 4hrs (at 20°C room temperature), preferably overnight.

Uni-Mould Tooling Gelcoat should then be backed up with Uni-Mould Coupling Coat and 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.

Compatibility Information - Dos and Don'ts

Although by no means an exhaustive list, the Pattern materials, release agents and additives listed below have all been tested and are known to work well with Uni-Mould Tooling Gelcoat.

  • Compatible Patterns
  • Pattern Coat Primer
  • Pattern Coat High Gloss
  • Epoxy and Polyester resin based patterns (with suitable release agent)
  • Polypropylene and polyethylene sheet
  • Aluminium (with suitable release agent)
  • Toughened Glass (with suitable release agent)
  • Compatible Release Agents
  • Easy-Lease Chemical Release Agent
  • PVA Mould Release
  • No 8 Mould Release Wax
  • Compatible Additives
  • Solution MW Wax Additive

Key Processing Information

  • Ease of Use
  • Suitable for professional and hobby use (follow SDS advice)./li>
  • Odour
  • UMTGC has a strong styrene based odour./li>
  • Safety Precautions
  • Wear gloves and goggles and work in a well ventilated area. Always read the SDS before use./li>
  • 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./li>
  • Degassing
  • Not necessary in most cases. Simply mix and use./li>
  • Mix Ratio
  • Add MEKP Catalyst at a ratio of 1.5 - 2%. Use digital scales./li>
  • Mixing
  • Mix thoroughly by hand for at around 2 minutes./li>
  • Application
  • Can be applied by brush. Coating thickness 0.3 - 0.4mm. Minimum of two coatings recommended./li>
  • Pot-Life
  • The pot life at 25°C is 15 minutes. Be sure to use your resin before this time./li>
  • 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./li>
  • Cure Time/Demould
  • At 20°C allow the gelcoat to cure for a minimum of 4 hours, preferably overnight before backing with Coupling Coat./li>
  • Overcoating / Second coatings
  • We recommend 2 coatings of 0.3 - 0.4mm per coating for best results./li>
  • Maximum Service Temperature
  • When fully cured and post cured, the maximum Service Temerpature of Uni-Mould moulds is 90°C/li>
  • Shelf Life
  • Uni-Mould tooling gelcoat has a shelf-life of 4 months. /li>

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
ColourBlack
Chemistry / MaterialVinylester
Viscosity7000mPa.s
Pot Life (Typical)15mins
Initial Cure Time4Hrs
Cured Mechanical Properties
Max Service Temp90°C
Hardness70 (Hard)Shore D
FlexibilityHard / Rigid
Tensile Strength38.58MPa
Flexural Strength155.2MPa
Flexural Modulus3.44GPa
Elongation at Break2.1%
General Properties
Gross Weight1.158kg
Can’t find the answer you’re looking for?Ask our technical team a question.

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 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.

You woudl make a repair to Uni-Mould tooling gelcoat in much the same way as you would make a repair to a normal polyester gelcoat. If you're making the repair on the surface side of the mould (the most likely reason because of a 'blister' or cracked out piece of gelcoat) then you would snap away any broken or loose gelcoat to reveal the blister in full and then mix up a tiny batch of Uni-Mould Tooling Gelcoat, catalyse it with MEKP and then add a single drop or two of Solution MW Wax Additive. You would then dab the gelcoat into the blister (using a lolipop stick or similar) to fill the cavity, leaving the new wet gelcoat slightly higher than the surrounding gelcoat of the mould. By adding the wax additive you'll ensure that the gelcoat cures properly on the surface (rather than stay tacky) making it much easier to flat and polish once it's cured. Finally, you just flat and polish the repair so that it's flush with the surrounding gelcoat.

All the resins and gelcoats in the Uni-Mould tooling system have a shelf-life of 4 months. Recommended storage conditions are to use the original container, kept away from direct sunlight at temperature between 15°C and 25°C.

We would not recommend applying the gelcoat with the cup gun as it is too thick for it to spray properly. Instead, we would suggest conventional brush application.

Uni-Mould moulds are based on a very high quality vinylester tooling gelcoat which will out-last more conventional polyester gelcoats. The special gelcoat is also highly polishable which means that hard-working moulds can be re-polished to restore them to original condition (something which is almost impossible with epoxy tools for example). The lifespan is dependent upon a number of factors, particularly how well they’re treated, but in our workshop we have found a well looked-after mould will give hundreds of releases. We have 7 year old moulds still in regular use!

Yes, certainly. What you need to remember though is that a combination of Uni-Mould Gelcoat and then a standard polyester resin won't have the high temperature capabilities that a full Uni-Mould system would have and also a standard polyester will be more prone to shrinkage so you should follow the time honoured process of laying up lots of thin layers, allowing the resin to cure almost fully between each layer as you build up the reinforcement. This will reduce shrinkage considerably but will mean it takes several more days to reinforce your mould.

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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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