Marinelite Windows Ltd

Before You Begin

  • Read through the complete guide
  • Assemble all the tools you will need
  • Have a helper
Tools Needed
  • Paper towels
  • Sharp pencil
  • Industrial quality caulking gun, or electric caulking gun.
  • Our structural sealant has a high green strength and therefore the material is thicker than other adhesives. An industrial quality caulking gun is recommended. Battery operated caulking guns are available from Ryobi and others for more frequent installers
  • Wax and grease remover, available at any auto or marine paint store. Follow solvent manufacturers safety precautions.
  • Isopropyl alcohol, available at your local pharmacy.
  • Please note: Do NOT use rubbing alcohol. It contains a moisturizer and is not suitable for cleaning bulkheads Important!

Note: You may need a small disk grinder to remove access material from the cutout if the window does not set properly in the opening. If material must be removed to get a proper fit, grind away material from the window opening, not the window frame. Always use eye protection when using a grinder or sander.

Preparation Before Fitting

The Simson ISR 70-09/70-08 adhesive supplied with Marinelite windows has been tested by the manufacture and by Marinelite Windows Limited. It bonds securely to aluminum, stainless steel, galvanized steel, zinc, copper, brass, glass, GRP (fiberglass), paint and Gelcoat.

Any bare metal surface, such as aluminum, steel, brass and stainless steel, etc., must be sanded clean and the adhesive applied before metal oxidization begins. In some conditions oxidization begins in just a few hours. Installation should be done as soon a possible after preparation.

Any protective or cosmetic coating applied to the surface of the structure (example: paint, epoxy, Gelcoat, etc.) must to be prepared and applied as per the manufacturer’s instructions and fully cured before window installation.

If there are doubts that the surface coating has been properly prepared and applied in the specified temperature and conditions, or is fully cured, you must take appropriate steps to ensure secure bonding. For example, if the wheelhouse consist of GRP (fiberglass) and coated with paint or Gelcoat, the coating can be sanded down until the bare fiberglass is exposed. This surface can be cleaned with wax and grease remover or 99% Isopropyl Alcohol to remove dust and contaminants. The window can then be installed.

Please note. Marinelite Windows Limited is not responsible for any leaking or adhesive separation or any damages resulting from adhesive separation due to improper surface preparation or improper window installation.



Begin installation by dry fitting all the windows.

You may need to grind away some of the bulkhead so the window will fit into the opening. Small wood shims help centre the window in the opening. Have shims ready before you begin.

Wash the bulkhead with wax and grease remover available at any automotive paint supplier. Automobile painters use product this to wash a car body before painting. Wash with wet paper towel and wipe dry before it air dries.

Clean window flange with 99% Isopropyl Alcohol before applying sealant. (Must be 99%. Less than 99% Isopropyl, such as rubbing alcohol, contains lotion and will leave a residue).

Important: If your wall is not flat (bowed or twisted), additional sealant must be applied to fill in the voids. Do not tighten the installation screws enough to cause the window to bend to the curvature of the wall as the glass will be over-stressed and crack/shatter during the installation or in the future.

Installing a Fixed Window

Apply a “V” shape bead 3/8″ tall with the special V-tip supplied with the 70-09/70-08 adhesive.
Holding the gun upright and the tip in contact with the window, make your bead as close to the outside edge of the window as possible. Slide the tip along the outside lip of the window frame. This will give you a strait and properly placed bead.

A battery operated caulking gun like the Ryobi 18v Model P310 works perfectly. If you do not have a battery operated gun you will need a good quality industrial caulking gun because the adhesive has a high green strength and therefore is thick and hard to pump.


Place the window in the hole and press firmly until all sides are flat against the bulkhead. Have someone on the inside ready with small wood shims you have prepared earlier. The person on the inside will need to position the window in the center of the cutout and place shims at the bottom and possibly on the sides to hold the window at the most entered location.


You are now ready to install the inside trim.


To install the inside moulding, start by setting and fastening one corner at a time.

IMPORTANT: If for any reason that you need longer screws to attach the moulding, be certain that the screws do not reach through the frame of the fixed window as the screw tip will contact the glass. On the sliding windows the screws should thread into the frame no deeper that about 1/2″.

Installing a Sliding Window

Slider installation is the same as the fixed windows except you will only need a 1/4″ high bead of sealant instead of a 3/8″ high bead.

Caution: The meeting post must be properly aligned for the window to close properly. Apply pressure by hand to set the window. Watch the alignment of all the frame sections so the window is not curved or twisted.

Immediately after the sliding window is pressed into place, open and close the window several times to confirm proper operation. If the windows opens and closes easily and the latch engages and disengages you can install the inside molding.

Only tighten the molding screws until the molding reaches its home position. Over-tightening these screws will change the alignment and cause improper operation.

See illustrations below.


Marinelite Windows Ltd

PO Box 163, 39 Abbott’s Harbour Rd, Middle West Pubnico NS, B0W2M0

902 762 3090

902 762 3094

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