I need advice how to laminate flat sheet with fiberglass.

There are 3 sheets 25 mm honeycomb already joined so total size is 2.4m x 3.6m.

I am just in the process of covering whole surface with double glass canvas and epoxy but I am afraid that bubbles still
appear beside intensive rolling over with flat aluminum roller.

Should I cover whole surface with plastic sheet and vacuum it or apply something on top ?

I am afraid that bubbles could create the weak points later and cause spot de- lamination.

If too late save that one at least next time I will be better informed.

You could be right, but I wanted to avoid filling honeycomb with resin.
I am afraid that resin will leak into cells and fill it.

Quality honeycomb should allow to penetrate , but that cheaper version from Nuplex may leak.

This way I need apply 3 layers of epoxy but only one fiber matte ( every few hours).

This will be my new deck for my electric catamaran

Thanks , I need to do one more for roofing , so I could try this method.
I need to make very big table I think two yellow tongue flooring panes should be enough.

WA71 said..

Im going to regret this, but wtf are you making?

you know some times its better not to ask in case the answer scars you for life

WA71 said..

Im going to regret this, but wtf are you making?

The confounding thing is how ever did everyone else resist asking this question?

Macroscien said..


This will be my new deck for my electric catamaran

hum... macro humour or not ?

Skid said..

WA71 said..

Im going to regret this, but wtf are you making?

He already told us...

Macroscien said..

.....This will be my new deck for my electric catamaran

On the subject of decks (and shamelessly pinched from the funny images thread)...

#t=105

Good post Skid, That reminds me that I need to cover now epoxy laminate with paint to protect from UV.

What can I use ? Can I use gel coat ? I heard that shouldn't be used over epoxy resin. That I should use only epoxy paint. Is it true?

seanhogan said..

Macroscien said..


This will be my new deck for my electric catamaran

hum... macro humour or not ?

I think he is planning on heading up to Hamilton Yacht Club to give Mr Oatley a few pointers in the right direction regarding Catamaran design and build

Harrow said..

WA71 said..

I thought he was joking when he said catamaran deck.

I find macros style hard to read, I missed his second post.

He must be a miget if he thinks that is going to work!

Macroscien said..


What can I use ? Can I use gel coat ? I heard that shouldn't be used over epoxy resin. That I should use only epoxy paint. Is it true?

You can use 2 pack urethane, straight over the top of epoxy, but don't use polyester unless the epoxy is completely cured, ie a couple of days at 60c or a couple of weeks at 25c.

decrepit said..

Macroscien said..


What can I use ? Can I use gel coat ? I heard that shouldn't be used over epoxy resin. That I should use only epoxy paint. Is it true?

You can use 2 pack urethane, straight over the top of epoxy, but don't use polyester unless the epoxy is completely cured, ie a couple of days at 60c or a couple of weeks at 25c.

ok. If I will use now 2 pack urethane paint, white, can I add something to make the surface as gripy/ non slippery as possible but not too abrasive also ?
Can I apply this urethane with roller or I need to spray it ?