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Ottopur OP 910 gun foam 1K PU metered foam 62 dB sound insulation 750 ml

Description

Ottopur OP 910 is a 1K gun foam based on polyurethane for installing and insulating window and door frames in masonry. It insulates the connection with approx. 62 dB to EN ISO 717-1 and 0.037 W/mK and, as EMICODE EC 1 Plus, has very low emissions. The 750 ml can delivers approx. 45 litres of foam.

Benefits at a glance

  • Sound-insulating: approx. 62 dB in the joint build-up to EN ISO 717-1.
  • Insulates like insulation material: approx. 0.037 W/mK to EN 17333-5.
  • High yield: approx. 45 litres of foam or 30 running metres of joint per can.
  • Quick to move on: cuttable after approx. 30 minutes, loadable after approx. 3-5 hours.
  • Low emission: EMICODE EC 1 Plus and VOC class A+.

Areas of application

  • Window and door frames made of timber, steel or plastic in masonry
  • Internal partition walls and window sills
  • Cavities of all kinds, also narrow joints in the renovation of old buildings
  • Well and shaft rings in manholes and domestic septic tanks
  • Perimeter insulation: rigid polystyrene foam boards to DIN 4108-2, approx. 14 m² per can

Limits & notes

The foam is normally flammable (class E to DIN EN 13501-1): a B1 fire protection foam belongs at connections with fire protection requirements. Outdoors, the cured foam must be painted over, sealed or covered, because it is not UV-resistant. It remains water-impermeable only if uncut. Fill cavities only partially, as the volume increases during curing.

Hazard statements: Danger. H222 Extremely flammable aerosol. H229 Pressurised container: may burst if heated. H315 Causes skin irritation. H317 May cause an allergic skin reaction. H319 Causes serious eye irritation. H332 Harmful if inhaled. H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled. H335 May cause respiratory irritation. H351 Suspected of causing cancer. H373 May cause damage to organs through prolonged or repeated exposure. EUH204 Contains isocyanates. May produce an allergic reaction. Safety data sheet available from the manufacturer.

Application & tips

Clean and dampen the substrate, brace components against deformation. Shake the can at least 20 times and screw it into the foam gun without tightening. Contains isocyanates. Apply only with disposable nitrile gloves and safety goggles, ensure good ventilation; cured foam can only be removed mechanically. Commercial users have needed training under REACH Annex XVII No. 74 since 24 August 2023. Propellant extremely flammable: work away from ignition sources, protect the can from sun and from temperatures above +50 °C. Remove fresh residues with gun cleaner, store cans upright at +5 to +25 °C, shelf life unopened 12 months.

Frequently asked questions

How many windows can I do with one can?
With a joint of 2 × 7 cm, the approx. 30 running metres are enough for about five windows with 5 m connection length.

Do I need a foam gun?
Yes. OP 910 has a screw connection and cannot be dosed without a gun.

Why does the substrate have to be dampened?
The 1K foam cures with moisture: dampening speeds up curing and improves the cell structure.

Is OP 910 suitable for load-bearing door frames?
A 2K door frame foam is better for that: it cures to a pressure-resistant state independently of atmospheric humidity.

Technical data

Area of use: Exterior, Interior
Colour: beige
Content: 750 ml
Material: Polyurethane (PU)
Pack size: 750 ml
Technical data
Base: 1K PU dispensing foam, moisture-curing
Sound insulation: approx. 62 dB to EN ISO 717-1
Thermal conductivity: approx. 0.037 W/mK to EN 17333-5
Water absorption: approx. 0.28 kg/m² to EN 1609, over 60 % closed-cell
Fire behaviour and emissions: Class E to DIN EN 13501-1; EMICODE EC 1 Plus, VOC class A+
Temperature resistance: -40 to +90 °C
Application
Foam yield: approx. 45 litres per 750 ml can
Tack-free time: approx. 8 minutes to EN 17333-3
Cuttable / load-bearing: after approx. 30 minutes / after approx. 3-5 hours
Application temperature: Can +5 to +30 °C, substrate and surroundings +5 to +35 °C
Use
Yield: approx. 30 linear metres of joint or approx. 14 m² of perimeter insulation boards per can
What's included
Supplied as: 750 ml aerosol can with gun connection, unopened shelf life 12 months

Data sheets

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

All products by OTTO Chemie

Information as of: 2026-09-17

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For your project

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Project: Door frame and installation with PU foam

Wedge and brace the frame and foam it with assembly foam or fast-setting 2K frame foam; cut off excess foam after it has cured. Finally close the connection joint to the wall with paintable decorators' acrylic.

  1. Prepare the surface

  2. Tools & accessories

  3. Finish & care

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