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Add to CartInterlux Watertite is a quick drying 2-part epoxy filler suitable for use on Fiberglass, Metals, Epoxy and rigid Wood constructions. The formulation does not shrink and is extremely water resistant, making it suitable for osmosis damage repairs. It has a long easy-to-sand window and can be applied to a thickness of 3/4" without sagging. Its superior spreadability makes it an ideal glazing compound for filling small nicks and scratches.
Features:
Specifications:
***WILL SHIP GROUND ONLY TO THE CONTIGUOUS 48 STATES ONLY***
| Temp | To Touch | Sandable | To Launch | Pot Life | To Recoat |
| 95°F | 20 MIN | 3 HR | 36 HR | 10 MIN | 10 HR |
| 73°F | 35 MIN | 5 HR | 2 DAY | 15 MIN | 5 HR |
| 50°F | 50 MIN | 8 HR | 5 DAY | 25 MIN | 4 HR |
Note: At 7°C/45°F the pot life is 30 mins and the product is sandable after 24 hrs, immersion after 6 days.
METAL: Above water: Pre-prime with Viny-Lux Primewash 353/354. Apply one coat of Epoxy Primekote. Sand surface with 80-120 grade (grit) paper, wipe clean. Apply Watertite*. Below water: Prime with Interprotect 2000E or Interprotect 3000.
BARE FIBERGLASS: Clean with Fiberglass Surface Prep YMA601 or Fiberglass Solvent Wash 202. Sand with 80 grade (grit) paper. Remove sanding residue.
APPLICATION INFORMATION: Mix in a 1:1 ratio by volume it is important to ensure the correct volume mix ratio is used. Mix the two components thoroughly to an even colour. Do not use below 7°C. Do not apply more than ¾" thickness at any one time. Product temperature should be minimum 10° C/50°F and maximum 35°C/95°F. Ambient temperature should be minimum 7°C/45°F and maximum 35°C/95°F. Substrate temperature should be minimum 7°C/45°F and maximum 35°C/95°F. Apply using a trowel, spatula or putty knife. When the product has cured, wash with fresh water and sand with 80 grade (grit) paper. Apply to clean, dry, properly prepared surfaces only. Watertite* must be overcoated with VC Tar, VC Performance Epoxy, Interprotect 2000E/2001E or Interprotect 3000/3001. Do not apply topside finishes, polyester or vinylester materials over Watertite*.
Click to Download Interlux Watertite Epoxy Filler Application Instructions
What is Interlux Watertite 2-Part Epoxy Marine Filler Compound used for?
Interlux Watertite 2-Part Epoxy Marine Filler Compound is a quick-drying, water-resistant epoxy filler for repairing fiberglass, metals, epoxy, and rigid wood constructions. It can be used above or below the waterline and is suitable for filling small nicks and scratches as well as osmosis damage repairs.
How do I mix Interlux Watertite Epoxy Marine Filler?
Mix the two components in a precise 1:1 ratio by volume. Thoroughly combine both components until the mixture reaches an even color. Watertite should not be thinned, and the product should not be applied below 45°F.
How thick can Interlux Watertite be applied?
Interlux Watertite can be applied up to 3/4 inch thick at one time without sagging. Apply it with a trowel, spatula, or putty knife to clean, dry, properly prepared surfaces. Do not exceed the 3/4-inch maximum application thickness in a single application.
Can Interlux Watertite be used above and below the waterline?
Yes. Interlux Watertite is formulated for use both above and below the waterline. Surface preparation and priming requirements vary by substrate. For example, bare fiberglass should be cleaned and sanded, while metal requires the specified primer system before or after application depending on whether it is above or below the waterline.
When can Interlux Watertite be sanded after application?
Sandable time depends on temperature. At 95°F, Watertite is sandable after approximately 3 hours; at 73°F, after 5 hours; and at 50°F, after 8 hours. After curing, wash the surface with fresh water and sand with 80-grit paper before proceeding with the appropriate overcoat system.
What products can be applied over Interlux Watertite?
Watertite must be overcoated with VC Tar, VC Performance Epoxy, Interprotect 2000E/2001E, or Interprotect 3000/3001. The product description specifically states not to apply topside finishes, polyester, or vinylester materials over Watertite.
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
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