Ottopur OP950 assembly foam WLG 035 flexible foam 750 ml – case of 12
€135.90
- Takes up building movement for good
- Can still be applied in frost
- Insulates sound and heat at the same time
- One can yields around forty-four litres of foam
- 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 case of 12 is the manufacturer’s original case containing 12 units of the same type. You pay less per unit than when buying singly, and the sealed case is delivered – ideal for trade businesses and larger projects.
What is the Ottopur OP950 mounting foam?
The Ottopur OP950 is a 1K PU gun foam from the Otto-Chemie range that permanently and flexibly absorbs building-element movement and reliably insulates against sound and heat loss. As a flexible foam it stays elastic after curing and can also be applied cleanly at winter temperatures down to -10 °C.
Benefits at a glance
- ✅ Permanent absorption of building-element movement without cracking
- ✅ Can be applied down to -10 °C – usable all year round as a winter foam
- ✅ 63 dB sound insulation to EN ISO 717-1
- ✅ 0.035 W/mK thermal insulation (thermal conductivity group WLG 035) to DIN 52612
- ✅ High foam yield of approx. 44 litres per 750 ml can
Areas of application
- 🔧 Installing and insulating window and door frames made of wood, steel or plastic in masonry
- 🔧 Filling and insulating joints and cavities in loft conversions and roof insulation
- 🔧 Foam-filling small wall recesses, cable penetrations and other cavities
- 🔧 Wherever building elements move and a rigid standard foam would crack – OP950 stays permanently elastic
Technical properties and application tips
The flexible foam is based on 1K polyurethane and has been tested as normally flammable to DIN 4102-B2. Cuttable after approx. 35 minutes, load-bearing after around 12 hours. Shake the can at least 20 times before use, screw it into the dosing gun and, on first use, briefly flush the material channel through completely. Fill cavities only to about two thirds, as the foam continues to expand while curing. Fresh residues are removed by OTTOPUR Cleaner, cured foam only mechanically.
Technical data
| Area of use: | Exterior, Interior |
|---|---|
| Pack size: | 750 ml |
| Application | |
|---|---|
| Can be cut after: | approx. 35 minutes |
| Can bear load after: | around 12 hours |
| Standards | |
| Standard: | DIN 52612 |
| Storage | |
| Storage: | In unopened packaging, stored cool (+5ºC and +25ºC) and dry |
| What's included | |
| Supplied as: | 750 ml aerosol spray can |
| Use | |
| Merchandise group: | Construction foam & PU foam |
| Product group: | Assembly foam |
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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