FlexFoam-iT!™ 23 FR

FF23FRPint ⓘ EF606976-21B2-7C4B-B19D-0BAEA48FBCD0
Foam

High-density, fire-retardant, flexible polyurethane foam with an expansion ratio of ca. 2x, quick curing.

  • Density: 368 kg/m³ (23 lb/ft³)
  • Mix ratio: 1A:1B by volume
  • Pot life: 45–60 seconds
  • Expansion approximately: 2 times
  • Full cure in 4 hours
exclamation.svg health-hazard.svg

Danger

H315 - Causes skin irritation.
H317 - May cause an allergic skin reaction.
H320 -
H332 - Harmful if inhaled.
H334 - May cause allergy or asthma symptoms or breathing difficulties if inhaled.
€ 27.94

(€ 23.09 without 21% VAT)

In stock

Description

This high-density, flexible polyurethane expanding foam features fire-retardant properties, making it suitable for applications requiring durability, flexibility, and enhanced fire performance. 

With a density of approximately 368 kg/m³ (23 lb/ft³), it is one of the toughest materials in its series, producing a strong, resilient foam for professional and industrial uses.

The system mixes at a 1A:1B ratio by volume (approximately 100A:100B by weight), ensuring simple and consistent processing. 

Once mixed, it offers a short pot life of about 45–60 seconds, ideal for fast production environments. 

The foam expands to roughly 2x its original liquid volume, providing controlled fill with a tight, uniform cell structure that minimizes over-expansion and enhances dimensional accuracy.

It reaches a handling time of approximately 60 minutes, after which parts can be demolded, trimmed, or assembled without damage. 

Full cure is typically achieved in about 4 hours, delivering final mechanical strength and flexibility within the same working day. 

The cured foam is typically gray, flexible yet extremely tough, and can be cut, sanded, drilled, or painted as needed.

Thanks to its fire-retardant formulation, high density, and excellent tear and compression resistance, it is widely used for theatrical and film props, set pieces, transportation components, protective padding, industrial molds, and structural foam fills where added safety and long-term durability are critical.

Instructions

  • Mix at a 1A:1B ratio by volume (approximately 100A:100B by weight) until uniform. 
  • Pour immediately, as the working time is approximately 45–60 seconds. 
  • The foam expands to about twice its original volume, so allow space in the mold. 
  • Do not disturb during the rise. 
  • Demold after approximately 60 minutes. 
  • Full cure is achieved in about 4 hours.
  • Use clean, dry molds and a release agent if needed. 
  • After curing, the foam can be trimmed, sanded, or painted. 
  • Wear gloves and ensure good ventilation during use.

Specifications

Color White
Mixed Viscocity 1,000 cps
Cure Time 2 hours
Pot Life 90 seconds
Specific Volume 68 cu. in./lb.
Specific Gravity 0.37 g/cc
Expansion 2 times
Mix Ratio By Weight 85A:100B
Foam Density 23 lb/ft³
Handling Time 60 minutes
Available in Foam
Product Handling Time Cure Time Specific Gravity Specific Volume Expansion Foam Density Mixed Viscocity Mix Ratio By Volume Mix Ratio By Weight Pot Life Color Mixed Viscocity Cure Time Pot Life Specific Volume Specific Gravity Expansion Mix Ratio By Weight Foam Density Mix Ratio By Volume Handling Time
FlexFoam-iT!™ III 25 min. 2 h. 0.05 g/cc 504 cu. in./lb. 15 times 3 lb/ft³ 1,000 cps 1A:2B 57.5A:100B 35 sec. White 1,000 cps 2 h. 35 sec. 504 cu. in./lb. 0.05 g/cc 15 times 57.5A:100B 3 lb/ft³ 1A:2B 25 min.
FlexFoam-iT!™ IV Tuff Stuff 45 min. 2 h. 0.06 g/cc 420 cu. in./lb. 13 times 4 lb/ft³ 1,000 cps - 80A:100B 30 sec. - - - - - - - - - - -
FlexFoam-iT!™ V 45 min. 2 h. 0.08 g/cc 315 cu. in./lb. 11 times 5 lb/ft³ 1,000 cps 1A:1B 105A:100B 50 sec. White 1,000 cps 2 h. 50 sec. 315 cu. in./lb. 0.08 g/cc 11 times 105A:100B 5 lb/ft³ 1A:1B 45 min.
FlexFoam-iT!™ 6 Pillow Soft 60 min. 2 h. 0.09 g/cc 280 cu. in./lb. 10 times 6 lb/ft³ 1,000 cps 1A:1B 105A:100B 35 sec. White 1,000 cps 2 h. 35 sec. 280 cu. in./lb. 0.09 g/cc 10 times 105A:100B 6 lb/ft³ 1A:1B 60 min.
FlexFoam-iT!™ 7 FR 60 min. 2 h. 0.11 g/cc 229 cu. in./lb. 8 times 7 lb/ft³ 1,000 cps 1A:1B 100A:88B 35 sec. White 1,000 cps 2 h. 35 sec. 229 cu. in./lb. 0.11 g/cc 8 times 100A:88B 7 lb/ft³ 1A:1B 60 min.
FlexFoam-iT!™ VIII Pillow Soft 25 min. 2 h. 0.13 g/cc 194 cu. in./lb. 7 times 8 lb/ft³ 1,000 cps 1A:2B 52.6A:100B 35 sec. White 1,000 cps 2 h. 35 sec. 194 cu. in./lb. 0.13 g/cc 7 times 52.6A:100B 8 lb/ft³ 1A:2B 25 min.
FlexFoam-iT!™ X 45 min. 2 h. 0.16 g/cc 157 cu. in./lb. 6 times 10 lb/ft³ 1,000 cps 1A:1B 105A:100B 50 sec. White 1,000 cps 2 h. 50 sec. 157 cu. in./lb. 0.16 g/cc 6 times 105A:100B 10 lb/ft³ 1A:1B 45 min.
FlexFoam-iT!™ 14 45 min. 2 h. 0.22 g/cc 114 cu. in./lb. 4 times 14 lb/ft³ 1,000 cps 1A:2B 100A:190B 60 sec. White 1,000 cps 2 h. 60 sec. 114 cu. in./lb. 0.22 g/cc 4 times 100A:190B 14 lb/ft³ 1A:2B 45 min.
FlexFoam-iT!™ 15 Tuff Stuff SLOW 90 min. 4 h. 0.24 g/cc 115 cu. in./lb. 4 times 15 lb/ft³ 1,000 cps 1A:2B 100A:185B 2 min. - - - - - - - - - - -
FlexFoam-iT!™ 17 30 min. 2 h. 0.27 g/cc 93 cu. in./lb. 3.5 times 17 lb/ft³ 1,000 cps 1A:2B 100A:185B 60 sec. White 1,000 cps 2 h. 60 sec. 93 cu. in./lb. 0.27 g/cc 3.5 times 100A:185B 17 lb/ft³ 1A:2B 30 min.
FlexFoam-iT!™ 23 FR 60 min. 2 h. 0.37 g/cc 68 cu. in./lb. 2 times 23 lb/ft³ 1,000 cps - 85A:100B 90 sec. White 1,000 cps 2 h. 90 sec. 68 cu. in./lb. 0.37 g/cc 2 times 85A:100B 23 lb/ft³ - 60 min.
FlexFoam-iT!™ 25 25 min. 2 h. 0.4 g/cc 63 cu. in./lb. 2 times 25 lb/ft³ 1,000 cps - 1A:2B 90 sec. White 1,000 cps 2 h. 90 sec. 63 cu. in./lb. 0.4 g/cc 2 times 1A:2B 25 lb/ft³ - 25 min.
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