The Paint Manual - Hempel

Keels
Keels are made from steel, cast iron, lead or occasionally a
combination of a cast iron fin with a lead ballast.
Preparation for Lead Keel
High pressure fresh water hose and allow
to dry. Abrade with 40–60 grade abrasive
paper. Remove dust with a soft brush and
follow chosen specification below.
Iron steel and lead keels – single pack/conventional
Preparation for Cast Iron
and Steel Keel
Shot blast or abrade to bright metal.
Remove dust and grit by brushing,
vacuuming or using dry compressed air.
Follow chosen specification below.
Coating steps: 1. Primer 2. Antifouling
Product
No of
coats
Recoating interval Covers
(m ² 10°C 20°C /ltr)
Thickness per coat
Thinner
wft dft
1. Underwater Primer 5
6h -
indefinite
3h -
indefinite
10 100 40 No 1
2. Hempel Antifouling
onto Underwater Primer
2 - 3
9h -
indefinite
5h -
indefinite
13 75 40 No 3
Iron steel and lead keels – two component system/high performance
Coating steps: 1. Primer 2. Tiecoat 3. Antifouling
Product
No of
coats
Recoating interval Covers
(m ² 1. Light Primer (thin 1st
10°C 20°C /ltr)
Thickness per coat
Thinner
wft dft
coat to 20%)
Primer onto Light Primer
4 8h – 60d 4h –30d 8.5 120 60 No 5
2. Tiecoat Underwater
Primer onto Light Primer
1 2h - 4h 1h - 2h 10 100 40 No 1
3. Hempel Antifouling
onto Underwater Primer
2 - 3
9h -
indefinite
5h -
indefinite
13 75 40 No 3
For best results overcoat Light primer with Underwater primer when
Light Primer is almost dry but still tacky.
35
Keels