Crestamould® Gelcoat 15PA(B) is a superior performance vinylester brush tooling gelcoat for making moulds designed to have a long service lifetime and retain high gloss levels after multiple pulls. It is easy to apply and achieves good coverage.
There is no gassing of the gelcoat ensuring a very low porosity surface. It cures with a standard MEKP catalyst. Crestamould Gelcoat 15PA (B) has excellent resistance to fibre print through when used with Crestamould VE679PA skincoat, Crestamould RTR4010PA or Crestamould Resin 474PA.
Features and Benefits
Vinyl ester base resin
Matched tooling system
Excellent chemical and heat resistance
Good impact resistance
Excellent surface finish and can be polished to high gloss
Reduces reinforcement print-through
Gel Time and Backup Time
Catalyst level and temperature will influence the gel time. The product only requires the addition of
catalyst to start curing. We recommend the use of a 50% MEKP (type Butanox® M-50) which should be
added at 2% in the gelcoat.
Post-curing
For optimum life, a mould constructed using Crestamould® Gelcoat 15PA (B) should be fully cured before
being put into use. This can be achieved by placing the mould in an oven at 40°C for 30 hours. If this is
not practical, the mould should be left in warm conditions (>20°C) for 2-3 weeks prior to use. Where a
mould is likely to experience severe conditions (e.g. due to high exotherm temperatures within backing
laminates), it should be post cured at an elevated temperature. Contact our Technical Service department
for further advice
Mould Release System
When a new mould is manufactured, traces of residual monomer remain within the tooling gelcoat.
Although post curing at 80°C will reduce this to an insignificant level, exposing a new mould to this
temperature is not always practical or desirable. The first release from a new mould is, therefore, likely to
be the most difficult, particularly if a mould which is not post cured is subjected to elevated temperatures
during its initial use. These temperatures could arise from the exotherm of the laminate contained
within the mould, or from the mould itself being passed through a heated area during use. The following
procedure was developed to combat release problems on new moulds manufactured and cured at
workshop temperature. It demonstrates an excellent release performance on new moulds and is equally
effective on moulds of any age:
1. Before first use, allow the mould to mature for a minimum of 7 days at 18°C or above.
2. Clean the mould thoroughly with a polyester mould cleaner.
3. Apply a polyester mould sealer according to manufacturers instructions.
4. Apply a semi-permanent release agent according to manufacturers instructions.
5. Optional apply one coat of a hard wax such as Mirrorglaze. This will reduce any tendency to de-
wet or pre-release when the mould is used.
6. After the first release, use a masking tape test to check that the release agent remains on the
mould surface.
7. If so, apply one coat of semi-permanent or hard wax. If not, repeat steps 2 to 4.
8. Continue as step 6 until the release performance becomes predictable and easy then re-apply
one coat of release agent as and when required.
Fibreglass Supplies use Royal Mail, APC Overnight and the National Hazardous Pallet Network for our Next Day Delivery Services.
Royal Mail
Orders of up to 2kg will usually be sent using a Royal Mail First Class Service for National Next Day Delivery.
APC Overnight
Orders over 2kg and up to 30kg will be sent using a Fully Tracked Next Day Service using APC Overnight. Some smaller Roofing Kits that weigh up to 30kg in Total would be sent on this service. This includes Resins, Gelcoats and Topcoats which are classed as Hazardous and are decanted into 5kg Tins or Pales to comply with the Transportation of Hazardous Goods Act.
Pallet Network
All our larger orders by weight would usually be sent using the National Pallet Network. Non Hazardous Items can be sent using either the Pallet Network or APC Overnight.
All Hazardous goods over 30kg (which includes Roofing Kits over 30kg in total weight) are usually sent using the National Pallet Network on a Fully Trackable Next Day Delivery Service.
NB - Please note that our Direct Control of the Delivery Element extends to making sure we pick pack and dispatch all orders on time. As we have no Direct Control over the performance of any individual courier we would not be responsible for refunds due to the late arrival of any order.
We always work hard with customers to overcome any issues that arise so please call us if you do have any concerns with regard to tight delivery deadlines so that we can provide great advice if needed.
Please read our Returns policy laid out below.
Under the Consumer Contracts Regulations 2014 you are entitled to return goods within 14 days of delivery for a refund of the cost of the goods. The delivery costs and any packaging are not included in the refund. The returned goods should be in the original containers and unopened. It is the customers responsibility to pay for the cost of returning goods to our Business Premises.
Some of our products are made to order and as such once ordered are non refundable and non returnable. These include coloured gelcoats, topcoats and resins.
These Consumer Regulations do not apply to business purchases (B2B). However we will always help in any way and look to find a suitable and mutually acceptable solution should any issues arise through the order process.
It is the customers responsibility to understand the suitability of the product before its use. Technical and Safety Data Sheets are available for all products where applicable. These can be found on most product description pages or if not are available on request. If you are unsure please do not hesitate to contact us for expert advice and product suitability and application.
To organise a return please contact us on the following.