Chemi-Weld Fitting Method
Chemically welding a Collar to your boat is an even stronger fitting method. We use the same glue that high-rise buildings are now fixing large panels of glass in with, because it's stronger than bolts!
Above diagram: shows the aluminium box sections that are mig-welded or chemi-welded to the outside of the hull, for the Collar and all outside fixings to adhere to.
This means no holes are required through your hull, so internal access isn't required.
Not suitable for poly boats of any size.
UNSUITABLE HULL SHAPES
Flared sides or bow
Swept-up chine &/or dinted sides
Lugs, extrusions, spray rails, etc
Chemi-weld system is not suitable for poly boats of any size, as the glue does not adhere to the poly.
HOW LONG UNTIL I CAN USE MY BOAT?
Adhesive applied = 2 weeks minimum
When using the T-Rex Power glue, allow 1 week for box section glue to dry + a further 1 week for glue under Collar to dry before using boat.
Mig-welded method = 1 week minimum
When using the mig-weld system, it usually takes 1 day to fully fit the Collar. But allow 1 week for the glue line to dry before using your boat for first time.
SUPER STRONG FIXINGS
The fixings used are very strong and, due to their size, heavy. The extra weight is the biggest reason why a chemi-welded fitting may not be suitable for the average tinnie. As well as the extra costs (especially in labour) involved with this method.
Behind each box section, hidden in the middle of the remaining foam Collar, is a 4mm thick internal plate to anchor the screw & prevent it 'riding' within the foam. This is done by us.
IMPORTANT NOTE - for painted aluminium hulls; heat marks
Mig-welding the box-sections to a painted hull requires less paint to be sanded off on the outside where the welds are to be applied, compared to the each boxed area being sanded for glue application.
It is important to note that the heat from the welds often leave visible brown marks as the heat penetrates through the hull... and then the paint. The thinner the hull, the more likely heat marks will be produced & visible.
This is a cosmetic issue only and does not weaken your boat's hull strength, but may require some touch-up paint on the inside.
Office: (07) 5441 3636
Mobile: 0423 499 047
58 Arundell Ave Nambour, QLD, Australia 4560.
Australian Patent # 2010201449. American Patent Application # 13/083,588 - Watercraft Accessory.
Marine Safety Innovations Pty Ltd.
ABN # 53 141 908 385
Australian owned & operated since 2010