PUR Raw blocks PURBLOCK

production to order

PUR raw unprocessed block of polyurethane rigid foam is untreated after foaming and still has its foam skin. It serves, among other things, as protection during storage and transportation. The raw block is the basis for all subsequent products. 

  • coefficient of thermal conductivity λ=0.021-0.038 (W/mK)
  • volumetric weight: ~33-200 kg/m3
  • heat resistance – 70°C to +140°C
  • reaction to fire E
  • Maximum compressive stress ≥ 270-3500 kPa at 10% depressurization
  • Water absorption during short-term immersion ≤ 3%
  • dimensional tolerance +/-1%
  • resistant to aging, mold, rot and harmful insects
  • safe for health - they do not contain CFCs, HCFCs and formaldehyde

Choose a variant:

Starting at 492.00 €
excluding shipping cost

Technical parameters:

E33 E40 E50 E60 E70 E80 E100 E145 E200
Density (EN 1602) kg / m3 33 (±10%) 40 (±10%) 50 (±10%) 60 (±10%) 70 (±10%) 80 (±10%) 100 (±10%) 145 (±10%) 200 (±10%)
Reaction to fire class
(EN 13501-1)
Euroclass E E E E E E E E E
Thermal conductivity
(EN 12667)
λ [W/mK] ⪇ 0,021 ⪇ 0,021 ⪇ 0,022 ⪇ 0,023 ⪇ 0,024 ⪇ 0,024 ⪇ 0,025 ⪇ 0,030 ⪇ 0,038
Compressive strength at 10% compression
(EN 826)
[kPa] 270 320 400 500 620 750 1100 2000 3500
E-module of compressive strength (EN 826) [kPa] 7000 8500 11000 15000 18000 22000 35000 55000 100000
Tensile strength perpendicular to the plane of the board
(EN 1607)
[kPa] 350 400 500 650 850 900 1200 1500 2000
Bending strength
(EN 12089)
[kPa] 300 350 550 700 950 1100 1600 2500 4000
Water absorption during short-term immersion (EN 1609) % ⪇ 3 ⪇ 3 ⪇ 3 ⪇ 3 ⪇ 3 ⪇ 3 ⪇ 3 ⪇ 3 ⪇ 3
Closed cell content
(EN ISO 4590)
% ≥ 90 ≥ 90 ≥ 90 ≥ 90 ≥ 90 ≥ 90 ≥ 90 ≥ 90 ≥ 90
Heat resistance °C -70 / +140 -70 / +140 -70 / +140 -70 / +140 -70 / +140 -70 / +140 -70 / +140 -70 / +140 -70 / +140

The use:

  • thermal insulation of buildings, walls, facades, ceilings, columns and attics of buildings.
  • additional insulation of partitions and walls from the interior.
  • insulation of window profiles, external blinds, window sills
  • insulating fillings of doors and structures
  • insulation filling of cardboard boxes and Thermobox pallets
  • construction material in the polyester-glass laminates industry
  • for constructors, designers to create prototypes, models, mock-ups, props, decorations, shapes or 3D advertising.
  • CNC model boards