Aluminium

Protecting aluminium is important because it oxidises in air producing white rust.
For good long term results, aluminium needs similar protection to steel surfaces.
The difference is the initial adhesion primer. SEAJET 017 Epoxy Bonding Primer is a high performance primer designed to give excellent adhesion to aluminium surfaces. This is the perfect start for all areas of an aluminium boat and better than using an etching primer.

Below the waterline

Pre-treatment:
Degrease surface. Rinse with fresh water.
Preferably abrade aluminium with 80–120 abrasive paper or abrasive grit blast using non-metallic grit.
Brush off dust and use lint free tack rags to remove remaining traces of dust.

No. of
Coats
Product nameCoating interval
at 10°C min/max
Thinner/
Cleaner
Abrasive
Paper
Comments
1SEAJET 017 Epoxy
Bonding Primer
12 hrs/7 daysThinner ENone
3-4SEAJET 117
Epoxy Primer
18 hrs/3 daysThinner ENone
Or for touch up areas only


5SEAJET 011
Underwater Primer
4 hrs/7 daysThinner ANone
Then


1-2SEAJET 034
Emperor Antifouling
12 hrs/NoneThinner ANone
Leave 18 hours before launching. Maximum interval before launching is 6 months.


Above the waterline

Pre-treatment:

Degrease surface. Rinse with fresh water.
Preferably abrade aluminium with 80–120 abrasive paper or abrasive grit blast using non-ferrous grit.
Brush off dust and use lint free tack rags to remove remaining traces of dust.

No. of
Coats
Product nameCoating interval
at 10°C min/max
Thinner/
Cleaner
Abrasive
Paper
Comments
1SEAJET 017 Epoxy
Bonding Primer
12 hrs/7 daysThinner E320 dry
2SEAJET 012 Universal
Primer Undercoat
24 hrs/14 daysThinner U320 dry

Then



2-3SEAJET 122
Brilliance
Topcoat
24 hrs/NoneThinner U400
wet or
finer

Or two component, high performance finish over bare aluminium.

 


1SEAJET 017 Epoxy
Bonding Primer
12 hrs/7 daysThinner E320 dry
2SEAJET 117
Multipurpose
Epoxy
18 hrs/7 daysThinner E320 dry
Then
2–3SEAJET 132
Polyurethane
Topcoat
12 hrs/NoneThinner P400 wet or
finer