Ottotape Trio BKA MF1 RAL Installation
€46.49
- Three functional zones seal inside, in the middle and outside
- Keeps out driving rain and protects the joint from the weather
- Insulates heat and sound in one working step
- Fitted without special tools
- 14 days right of withdrawal
- Expert advice: 02831 9167703 Mon–Thu 9–16, Fri 9–12 (CET)
- Specialist dealer in Kevelaer, Lower Rhine
Description
The OTTOTAPE Trio-BKA MF1 is a high-quality, multifunctional joint sealing tape for professional window and facade connections. It provides reliable sealing against weather, sound and energy loss – in new build as well as in refurbishment.
Benefits of the OTTOTAPE Trio-BKA MF1
- ✔ Three-stage functional zone for optimum interior, central and exterior sealing
- ✔ High driving-rain tightness and reliable weather protection
- ✔ Excellent thermal insulation and sound insulation properties
- ✔ Simple, quick installation without special tools
- ✔ Permanently elastic, ageing-resistant and compatible with common building materials
Areas of application
- Sealing window and door connections indoors and outdoors
- Avoiding thermal bridges and moisture damage
- Ideal for energy-efficient building projects (e.g. KfW, passive house)
- Alternative to conventional single-layer sealing tapes with considerably higher functional reliability
Product description
The OTTOTAPE Trio-BKA MF1 is based on an impregnated, compressed PU foam with variable sd-value technology. It offers excellent temperature resistance, is UV- and weather-resistant and meets the requirements of modern sealing systems. Thanks to its three-stage functional structure it simultaneously provides the inner airtight seal, the central thermal insulation and the outer driving-rain tightness.
Typical areas of use are construction, installation, window construction, facade technology and demanding refurbishment projects. For optimum application the tape should be chosen to match the joint width and inserted without tension.
Technical data
| Colour: | Anthracite |
| Container size: | Roll goods in various widths |
| Application temperature: | +5 °C to +35 °C |
| Temperature resistance: | -30 °C to +80 °C |
| Driving-rain tightness: | Up to 1,050 Pa (depending on model) |
| sd value: | Variable (tighter inside than outside) |
| Shelf life: | 12 months, store dry and cool |
| Certificates / standards: | DIN 18542, BG1/BG2 depending on version |
FAQ – Frequently asked questions about the OTTOTAPE Trio-BKA MF1
Technical data
| Version | |
|---|---|
| Pack size: | Tape width: 64mm x joint width 10-20mm |
| Technical data | |
| Contents: | 6 m |
| Temperature resistance: | -30 °C to +80 °C |
| Standards | |
| Standard: | DIN 18542 |
| Use | |
| Merchandise group: | Tapes & films |
| Application | |
| Application temperature: | +5 °C to +35 °C |
| Storage | |
| Shelf life: | 12 months, store dry and cool |
| Product group: | Window sealing tape & window connection membrane |
Frequently asked questions
When do I use Ottotape Trio BKA MF1 instead of the narrower Ottotape Trio FBA?
Ottotape Trio FBA (30/35 mm) covers joint widths of 6–15 mm. The wider BKA MF1 (64–84 mm) is also suitable for 10–20 mm, for example with larger elements. If the joint is wider than a tape's specification, the tape is not compressed enough and does not seal reliably.
How are the tape ends and corners done with BKA MF1?
Butt the tape ends neatly together (butt, do not overlap) and do not stretch the tape at corners. Overlaps create bulges that reduce the joint filling at that point and encourage leaks.
How does the window frame need to be prepared so that the tape holds?
The frame must be dry and free of release agents, otherwise the impregnated foam sealing tape will not adhere reliably. The reveal must be sound, clean and free of dust and grease.
Do I also need installation foam with BKA MF1?
Yes, for fixing: the PU installation foam fixes the frame at individual points in the opening. However, it does not replace the functional layers of the impregnated foam sealing tape (airtight on the inside, insulating in the centre, driving-rain-tight on the outside).
Data sheets
Data sheets and documents
All documents come unchanged from the manufacturer.
Manufacturer information
Manufacturer information pursuant to Art. 19 EU GPSR
Postal address
Hermann Otto GmbH
Krankenhausstr. 14
83413 Fridolfing
Germany
Electronic address info@otto-chemie.de
Information as of: 2026-09-17
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