OSKORP WINDOW SEALING SYSTEM
Protect Your Windows with Precision
Introducing Oskorp’s smart window sealing solutions, designed for superior protection against moisture, drafts, and weathering.
1 The Oskorp Duo Easy Smart Flashing Tape
2 The 3E Foam Tape
3 The BG1 Foam Tape

Oskorp Window Sealing System
Oskorp offers a complete window sealing system designed to protect your home or building from moisture, drafts, and harsh weather conditions. Our solutions include innovative flashing tapes and multi-functional tapes, ensuring airtight protection for both internal and external applications.
SYSTEM COMPONENTS
Product Highlights
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DUOEASY - The Smart Flashing & Sheathing Tape
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BG1 Foam Tape
-
3E Foam Tape

Features:
- Moisture-adaptive Sd-value for year-round flexibility
- Finger lift and split liner for easy application
- Stops drafts and moisture, ensuring long-lasting window integrity
- Internal and external window sealing for complete protection
Features:
- Extremely durable and exceeds the highest standards for joint sealing
- Exceptional protection against driving rain and weathering
- Airtight, weather-resistant, and perfect for long-lasting durability
BG1 Sizing Table
Product | Joint Depth | Joint Width (Minimum) | Joint Width (Maximum) |
---|---|---|---|
8/1.5-2.5 | 5/16'' (8 mm) | 1/16'' (1.5 mm) | 3/32'' (2.5 mm) |
10/1.5-2.5 | 3/8'' (10 mm) | 1/16'' (1.5 mm) | 3/32'' (2.5 mm) |
15/1.5-2.5 | 5/8'' (15 mm) | 1/16'' (1.5 mm) | 3/32'' (2.5 mm) |
20/1.5-2.5 | 3/4'' (20 mm) | 1/16'' (1.5 mm) | 3/32'' (2.5 mm) |
10/2.5-3.5 | 3/8'' (10 mm) | 3/32'' (2.5 mm) | 9/64'' (3.5 mm) |
15/2.5-3.5 | 5/8'' (15 mm) | 3/32'' (2.5 mm) | 9/64'' (3.5 mm) |
20/2.5-3.5 | 3/4'' (20 mm) | 3/32'' (2.5 mm) | 9/64'' (3.5 mm) |
10/3-7 | 3/8'' (10 mm) | 1/8'' (3 mm) | 9/32'' (7 mm) |
12/3-7 | 15/32'' (12 mm) | 1/8'' (3 mm) | 9/32'' (7 mm) |
15/3-7 | 5/8'' (15 mm) | 1/8'' (3 mm) | 9/32'' (7 mm) |
20/3-7 | 3/4'' (20 mm) | 1/8'' (3 mm) | 9/32'' (7 mm) |
10/5-9 | 3/8'' (10 mm) | 7/32'' (5 mm) | 11/32'' (9 mm) |
15/5-9 | 5/8'' (15 mm) | 7/32'' (5 mm) | 11/32'' (9 mm) |
20/5-9 | 3/4'' (20 mm) | 7/32'' (5 mm) | 11/32'' (9 mm) |
30/5-9 | 1 3/16'' (30 mm) | 7/32'' (5 mm) | 11/32'' (9 mm) |
15/7-12 | 5/8'' (15 mm) | 9/32'' (7 mm) | 15/32'' (12 mm) |
20/7-12 | 3/4'' (20 mm) | 9/32'' (7 mm) | 15/32'' (12 mm) |
30/7-12 | 1 3/16'' (30 mm) | 9/32'' (7 mm) | 15/32'' (12 mm) |
20/8-15 | 3/4'' (20 mm) | 5/16'' (8 mm) | 5/8'' (15 mm) |
25/8-15 | 1'' (25 mm) | 5/16'' (8 mm) | 5/8'' (15 mm) |
30/8-15 | 1 3/16'' (30 mm) | 5/16'' (8 mm) | 5/8'' (15 mm) |
25/10-18 | 1'' (25 mm) | 3/8'' (10 mm) | 11/16'' (18 mm) |
30/10-18 | 1 3/16'' (30 mm) | 3/8'' (10 mm) | 11/16'' (18 mm) |
Features:
- All-in-one multifunctional tape for easy window and door sealing
- Weatherproof and moisture-adaptive membranes for year-round protection
- Ideal for professional contractors and DIY enthusiasts
3E Sizing Table
Product | Joint Depth | Joint Width (Minimum) | Joint Width (Maximum) |
---|---|---|---|
56/4-9 | 2 3/16'' (56 mm) | 5/32'' (4 mm) | 3/8'' (9 mm) |
64/4-9 | 2 1/2'' (64 mm) | 5/32'' (4 mm) | 3/8'' (9 mm) |
74/4-9 | 2 7/8'' (74 mm) | 5/32'' (4 mm) | 3/8'' (9 mm) |
84/4-9 | 3 1/4'' (84 mm) | 5/32'' (4 mm) | 3/8'' (9 mm) |
94/4-9 | 3 5/8'' (94 mm) | 5/32'' (4 mm) | 3/8'' (9 mm) |
56/6-15 | 2 3/16'' (56 mm) | 1/4'' (6 mm) | 9/16'' (15 mm) |
64/6-15 | 2 1/2'' (64 mm) | 1/4'' (6 mm) | 9/16'' (15 mm) |
74/6-15 | 2 7/8'' (74 mm) | 1/4'' (6 mm) | 9/16'' (15 mm) |
84/6-15 | 3 1/4'' (84 mm) | 1/4'' (6 mm) | 9/16'' (15 mm) |
94/6-15 | 3 5/8'' (94 mm) | 1/4'' (6 mm) | 9/16'' (15 mm) |
56/10-20 | 2 3/16'' (56 mm) | 3/8'' (10 mm) | 3/4'' (20 mm) |
64/10-20 | 2 1/2'' (64 mm) | 3/8'' (10 mm) | 3/4'' (20 mm) |
74/10-20 | 2 7/8'' (74 mm) | 3/8'' (10 mm) | 3/4'' (20 mm) |
84/10-20 | 3 1/4'' (84 mm) | 3/8'' (10 mm) | 3/4'' (20 mm) |
94/10-20 | 3 5/8'' (94 mm) | 3/8'' (10 mm) | 3/4'' (20 mm) |
56/15-30 | 2 3/16'' (56 mm) | 9/16'' (15 mm) | 1 5/32'' (30 mm) |
64/15-30 | 2 1/2'' (64 mm) | 9/16'' (15 mm) | 1 5/32'' (30 mm) |
74/15-30 | 2 7/8'' (74 mm) | 9/16'' (15 mm) | 1 5/32'' (30 mm) |
84/15-30 | 3 1/4'' (84 mm) | 9/16'' (15 mm) | 1 5/32'' (30 mm) |
94/15-30 | 3 5/8'' (94 mm) | 9/16'' (15 mm) | 1 5/32'' (30 mm) |
Benefits of Oskorp Window Sealing System
- Moisture Protection: Keep moisture out and maintain a dry, comfortable home.
- Energy Efficiency: Seal drafts and improve energy efficiency by reducing heat loss.
- Durability: Designed to last, even in harsh weather conditions.
- Easy Application: Smart features like finger lift and split liner make installation simple and quick.
How It Works
- Apply DUOEASY for flashing and sheathing to stop moisture at the source.
- Use BG1 Tape for airtight, weatherproof sealing of window joints.
- Seal your windows and doors with 3E Tape, which adapts to moisture conditions and protects in any weather.
- Watch how to seal your windows using the DuoEasy Tape.