Do you need a special applicator gun for this foam?

Yes, this is an NBS gun foam. You need a standard NBS foam gun for precise and controlled dispensing.

What is the advantage of flexible PU foam over standard foam?

This flexible foam absorbs movements and vibrations of building materials without tearing, preventing thermal bridges.

What is the minimum application temperature for this gun foam?

Rectavit Pro Foam Flexible NBS can be applied at temperatures down to -10 °C.

Is this polyurethane foam fire-resistant?

No, this product is not fire-resistant.

Can this foam be painted over or plastered?

Yes, once fully cured, the foam can be painted over and covered with plaster.

RECTAVIT Pro Foam Flexible NBS gun foam beige/yellow (750 ml) - 123936

Name: RECTAVIT Pro Foam Flexible NBS gun foam beige/yellow (750 ml) - 123936
Brand: RECTAVIT
SKU: 02379320
Price: 10.89 EUR
Availability: PreOrder

Supplier number: RECTAVIT 123936 | EAN 5412926953073

From 12 piece €10.89

From 24 pieces €9.80 - €26.14 saving

From 36 pieces €9.26 - €58.81 saving

10.89 tax incl.

€9.00 excl. VAT (incl. all environmental contributions)

On order: delivered from 24/10/2026

The minimum purchase order quantity for the product is 12.

Delivery by DHL

↓ Documents (1) ✆ Talk to a specialist

Highly flexible sealing and insulation

Practical benefits

Maximum permanent elasticity: The foam absorbs structural movements and vibrations without cracking, ensuring you eliminate thermal bridges entirely.
Exceptional thermal acoustic insulation: You achieve reliable airtight seals around frames and joints while benefiting from high-performance sound dampening.
Controlled low expansion: With minimal post-expansion, you dispense accurately without exerting excessive pressure or deforming surrounding building elements.

In a nutshell

The right choise for

With Rectavit Pro Foam Flexible nbs 1K pu gun foam, you create durable, airtight seals and high-grade insulation around window frames and doors. The permanently elastic formula absorbs structural movements and vibrations without cracking, effectively preventing thermal bridges. Thanks to minimal post-expansion, you can dispense with pinpoint precision using a standard nbs gun without exerting pressure on adjoining profiles. This 1-component polyurethane foam delivers exceptional thermal and acoustic insulation for expansion joints and wall penetrations. It remains workable at ambient temperatures down to -10 °C and can be easily painted over or plastered once fully cured.

Product information FAQ

€10.89

tax incl.

Key features according to our expert

Net volume: 750 ml
H-statements: H222; H229; H315; H317; H319; H332; H334; H335; H351; H373
ADR packing group: Not applicable
ADR class: 2.1
UN number: UN1950
Principal hazard property: GHS02 Flammable
Number of components: 1
P-statements: P101; P102; P210; P211; P251; P308 + P313; P405; P410 + P412; P501
Hazard class: GHS02 Flammable; GHS07 Harmful or irritant; GHS08 Health hazard
Physical state: Aerosol
Based on: Polyurethane pre-polymer
Curing system: Polymerisatie door vochtopname
Colour (manufacturer): Yelllow beige
Fire-resistant: No

Scope of delivery

Aerosol: 750ml

Product description

Professional PU gun foam with increased flexibility and insulation value (thermal & acoustic) for airtight sealing and insulation in all building applications. Minimal post-expansion. Usable down to -10°C. Limited pressure and shrinkage. Can also be stored horizontally for up to 24 months. Also available in a handy combibox: Pro Foam Flexible NBS Combibox: 10 Pro Foam Flexible NBS + 1 NBS Pistol Compact + 1 Pur Cleaner NBS.

Application

Very strong adhesion to all common building materials
Can be used indoors and outdoors
Sealing of PVC and ALU joinery: perfectly captures movement of these materials.
Extra durable sealing of windows and doors as part of airtight construction.
Acoustic or sound-damping applications.
Insulation, sealing and filling in all building applications (movement joints, seams and connection joints between walls, ceilings, at pipe penetrations, filling of cavities, etc.).
Sealing of openings in roof structures.
Application at low temperatures.

Characteristics

Low Gun Expansion: minimal post-expansion
Maximum permanent elasticity: follows vibrations and movements for longer, so the foam does not crack and thermal bridges are avoided
Up to 50% compressible, does not crack
Excellent insulation value
Sound insulation up to 60dB
Usable down to -10°C
Limited compression and shrinkage
Duravalve: can also be stored horizontally for up to 24 months; yield remains maximum throughout service life
60% faster thanks to accurate dosing and fast curing
Excellent shape stability and cell structure
Ozone-free, no greenhouse effect
Can be painted over and finished with plaster
Resistant to water and most chemicals

Precautionary statements

P101: If medical advice is needed, have product container or label at hand.
P102: Keep out of reach of children.
P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P211: Do not spray on an open flame or other ignition source.
P251: Do not pierce or burn, even after use.
P308 + P313: IF exposed or concerned: Get medical advice/attention.
P405: Store locked up.
P410 + P412: Protect from sunlight. Do no expose to temperatures exceeding 50°C/ 122°F.
P501: Dispose of contents/container to ... (see safety data sheet).

Hazard statements

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.

Documents

⤓ Safety sheet PDF

All Features

Net volume: 750 ml
H-statements: H222; H229; H315; H317; H319; H332; H334; H335; H351; H373
Adr packing group: Not applicable
Adr class: 2.1
Un number: UN1950
Principal hazard property: GHS02 Flammable
Number of components: 1
P-statements: P101; P102; P210; P211; P251; P308 + P313; P405; P410 + P412; P501
Hazard class: GHS02 Flammable; GHS07 Harmful or irritant; GHS08 Health hazard
Physical state: Aerosol
Based on: Polyurethane pre-polymer
Curing system: Polymerisatie door vochtopname
Colour (manufacturer): Yelllow beige
Fire-resistant: No

Brand RECTAVIT
02379320
EAN 5412926953073
Supplier number RECTAVIT 123936

Frequently asked questions about this product

Answered by specialists

Do you need a special applicator gun for this foam?: Yes, this is an NBS gun foam. You need a standard NBS foam gun for precise and controlled dispensing.
What is the advantage of flexible PU foam over standard foam?: This flexible foam absorbs movements and vibrations of building materials without tearing, preventing thermal bridges.
What is the minimum application temperature for this gun foam?: Rectavit Pro Foam Flexible NBS can be applied at temperatures down to -10 °C.
Is this polyurethane foam fire-resistant?: No, this product is not fire-resistant.
Can this foam be painted over or plastered?: Yes, once fully cured, the foam can be painted over and covered with plaster.