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.

SUITABLE BOATS

Big fibreglass boats

Medium to big fibreglass boats, with flat or clinker sides. Clinkers must contain a consistent height.

Big pressed alloy boats

Larger pressed/clinker sided boats that can handle the weight of the extra large external fixings required.

Big plate alloy boats

Plate boats have the added option of mig-welding the box-sections to the hull (must be close to 3mm thick)

Small fibreglass tenders

TENDERS, fibreglass, under 4m with less than 15hp outboards - Collars can be glued on.

Not suitable for poly boats of any size.

SUITABLE HULL SHAPES

Pressed alloy boats
chemi-weld method.Cameron222
Flat plate boats
box sections welded to plate boat
Flat fibreglass boats
eric f
UNSUITABLE HULL SHAPES
Flared sides or bow
Too much curve in hull sides to suit Collars
Swept-up chine &/or dinted sides
plastic boat with swept up chine
Lugs, extrusions, spray rails, etc
side obstructions

Chemi-weld system is not suitable for poly boats of any size, as the glue does not adhere to the poly. 

HOW DOES IT WORK?

3 ESSENTIAL COMPONENTS

SUPER STRONG FIXINGS

Fixing the box-sections to the hull is done by either using chemical adhesion (T-Rex Power adhesive) or if an alloy boat, by mig-welding the box-sections directly to the hull.

BOX SECTIONS INSERTED

Box-sections are cut & the Collar routed out to hold them, so the Collars can sit flush over the top of the box-sections once fitted. The box sections go on first, then the Collar on top.

STRONG OUTSIDE SHIELD

The Collar is held hard against the boat with a super strong length of flat bar (6mm thick x 160mm high) which is screwed to the box-sections. The tip of the screws end inside the hollow boxes.

CHEMI-WELD STEPS

1. Clean surface area

The surface of the boat is cleaned & buffed to ensure max grab of the glue.

2. Adhesive or mig-weld

The adhesive is applied as several stripes to allow for quickest dry time.

3. Attach all box-sections

All boxes placed according to their locations within the marked Collar.

4. Fit Collar & Fixings

The Collar sits snug over the top of the box sections, and the fixings hold it.

5. Apply T-Rex underneath

A long glue line is applied underneath to ensure the Collar doesn't move.

6. Finished!

Allow a full week after glue line is applied before using boat for first time.

HOW LONG UNTIL I CAN USE MY BOAT?
Adhesive applied = 2 weeks minimum
chemi-weld method.Cameron222

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
box sections welded to plate boat

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.

Inside the 3mm box section, another 4mm thick alloy plate is welded to the inside of the outer shell, so the screws actually anchor into 7mm of plate in total, for max strength.

int plates 1kx750

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.

The heavy-duty aluminium flat bar and matching bow area plates are 6mm thick x 160mm high. So the majority of the Collar is covered with outside plates, which hold it tight.

IMPORTANT NOTE - for painted aluminium hulls; heat marks

560 sanded ready for painting

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.

IMG_2227

HOW WE QUALITY GRADE COLLARS

All Collars can vary in size by up to 10mm (bigger or smaller, in height &/or width).

A-Grade

A few small visual imperfections are common. These are caused by standard manufacturing processes & general handling.

Covered by full manufacturers warranty.

Examples include: Minor divots, valleys, impressions, &/or slight surface scratches. These cause no change to installation method and have no negative affect on performance. Impressions made in Collar often 'come-out' over time.

No discount given.

 

B-Grade

One to a few larger or permanent imperfections that will not be covered or reduce in size after installation. May require alterations to installation method, taking the damage/flaw into consideration.

Covered by full-manufacturers warranty.

Examples include deeper divots than A-Grades, that are considered more substantial in depth, number or size. Also includes deeply scratched/gouged areas, mis-cut or roughly cut sides.

Small discount given depending on number, location & type of imperfection, $50-$150 off.

C-Grade

Up to several severe & permanent impressions/flaws in the Collar that are unable to be hidden &/or will not reduce in size once installed. Customized alterations to the installation method are often needed - to take into account the damages/flaws in the Collar.

Not covered by manufacturers warranty, but full help & support provided to achieve best installation.

Due to the misshapen Collar, gouges, etc, there could be a possible impact &/or reduction in performance & handling.

Larger discount given depending. $150-$300 off.

SEND US PHOTOS OF YOUR BOAT TO SEE IF
YOUR BOAT COLLAR CAN BE CHEMI-WELDED

CONTACT/VISIT

Office: (07) 5441 3636
Mobile: 0423 499 047
58 Arundell Ave Nambour, QLD, Australia 4560.
info@boatcollar.com.au

BUSINESS DETAILS

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

SEE THE EVOLUTION OF THE BOAT COLLAR: