Fibreglass boat repairs for minor holes and cracks using polyester resin.

This repair example is for non structural repairs, epoxy resin should be used for structural repairs due to the acidic content to adhere to the original fibre glass better, making it much stronger.

Getting ready to repair!
Get some polyester resins, maybe from bunnings, chop up some fine fibreglass sheeting to very tiny particle sizes.

Get either a small or medium sized plastic container to pour in some resin and add the pieces of fibre glass as well and mix with maybe a screw diver or wooden ruler, the small for just a little repair the medium to match colour of boat with pigments and transfer some to small container as needed and mix in hardener-catalyst to use this small amount.
Then you can put away the large container of pre coloured resin for future use.

Get a pigment sort of like your boats colour, if a red of some kind, get a red pigment and white and beige and dark grey-black!
The red is brightened by the white and the beige dulls it and only use the grey-black when needed which is not usually, this you can be done with matching all colours!

Resin and pigments ready to start blending to get the right colour, just polyester resin for non structural work, epoxy for structural.


Colour test mixed resin with out catalyst mixed in yet on boat with finger.


Sticky tape used to fold over repair spot.


Place under repair spot ready to lay tape over the resin to form a flat surface.
Resin in and around hole.


Take tape off once resin hardens and this is the result.


The area to repair before old fittings are taken off and only holes remain.


After tape is taken off holes.


A larger repair done the same way