MAS Boat Building Epoxy 5:1 is the traditional ratio system many boat builders learned on, and it remains one of the most dependable epoxies for structural marine work.
A proven system for structural strength
Mixed at a straightforward 5:1 ratio by volume with MAS Slow hardener, this resin is built for jobs where strength and adhesion matter most: structural lamination, fibreglass and carbon fibre layups, hull and deck bonding, and general marine repair. Its self-levelling properties make it a strong choice for saturation coating, and the resin bonds well to timber, fibreglass, bare steel and lead, which makes it useful well beyond the boatyard for general structural repairs.
About the hardener
This resin is mixed with MAS Slow hardener, giving a longer working window suited to larger lamination jobs. It cures to a strong structural bond at the standard 5:1 mix ratio.
Working with fillers
Once mixed, this resin can be thickened with MAS Epoxy T-Cell (Cellulose Fibres) or MAS Epoxy Colloidal Silica Filler to create gap-filling and filleting compounds, or used neat as a penetrating sealer on bare timber before painting or varnishing.
Note: this is a traditional 5:1 system rather than a non-blushing formula. If you'd prefer a wax-free cure with less clean-up, see our MAS Low Vis Resin or MAS FLAG Thick Resin 2:1 ranges, and read our guide on amine blush for the difference between the two systems.
Epoxy.Ltd will deliver any paid for goods in the quickest possible way, usual delivery is 2/3 days however were we are sending goods overseas (this means across any water) this period may be extended up to two weeks or longer at the company’s discretion.
The company has an ongoing belief that good customers expect and deserve a top class service.
In the UK, any problem reported to us on delivery will be dealt with in the following manner:
- Faulty product, automatic replacement on return of goods to the company.
- Faulty product reported after 24 hours from delivery, product replaced after testing by the company, provided fault was found
- Refunds are discretionary to the company and are made if there is a fault with any goods sold
- Any goods that are wrongly ordered by the customer will be replaced subject to a 20% restocking charge (discretional to the company)
- Overseas and anywhere the company has to pay a surcharge on delivery (overseas means across any water)
- The company will only replace faulty goods on a like for like basis and only once the faulty goods are returned to the company
- Wrongly ordered goods will only be refunded, once they are returned to the company in a good saleable condition, overseas postage is not refundable under any condition (overseas means across any water or were the company has to pay any surcharge on delivery) any remaining refund will be subject to a 30% re stocking fee