They are the foams which are known as “foam” by everybody; most frequently sold and bought, the first one that comes into your mind when we say “Upholstery Foam”. They are more affordable when compared to their peers. Main types of conventional foams are shown in the following table.
Type of Foams |
Density Kg/m3 ISO 845 |
Firmness (N) ISO 2439 (ILD%40) |
Firmness ASKER F |
Tensile Strength (kPa) İSO 1789 |
Elongation at Break (%) ISO 1789 |
Tear Resistance (N/cm) ASTM.D 3547 |
Number of Cell (ad/Inc) |
D15 |
15±1 |
135±%15 |
33 (+\-%15) |
≥65 |
≥80 |
≥2 |
30±5 |
D17 |
17±1 |
150±%15 |
36 (+\-%15) |
≥75 |
≥90 |
≥2,5 |
35±5 |
D18 |
18±1 |
155±%15 |
37 (+\-%15) |
≥80 |
≥95 |
≥3 |
35±5 |
D19 |
19±1 |
160±%15 |
39 (+\-%15) |
≥85 |
≥105 |
≥3 |
37±5 |
D20 |
20±1 |
160±%15 |
39 (+\-%15) |
≥95 |
≥115 |
≥3,5 |
38±5 |
D22 |
22±1 |
170±%15 |
41 (+\-%15) |
≥100 |
≥125 |
≥3,5 |
40±5 |
D24 |
24±1 |
165±%15 |
40 (+\-%15) |
≥100 |
≥125 |
≥3,5 |
43±5 |
D24 Ultra Soft |
24±1 |
85±%15 |
21 (+\-%15) |
≥50 |
≥100 |
≥1,5 |
43±5 |
D26 |
26±1 |
200±%15 |
48 (+\-%15) |
≥110 |
≥130 |
≥3,5 |
40±5 |
D28 |
28±2 |
210±%15 |
51 (+\-%15) |
≥105 |
≥115 |
≥3,5 |
40±5 |
D28 Super Soft |
28±2 |
150±%15 |
36 (+\-%15) |
≥90 |
≥150 |
≥3,5 |
40±5 |
D32 Super Hard |
32±2 |
240±%15 |
58 (+\-%15) |
≥100 |
≥105 |
≥3 |
42±5 |
D32 Super Soft |
32±2 |
170±%15 |
41 (+\-%15) |
≥80 |
≥100 |
≥2 |
42±5 |
D19 Coral |
19±1 |
180±%15 |
43 (+\-%15) |
- |
- |
- |
- |
D21 Coral |
21±1 |
180±%15 |
43 (+\-%15) |
- |
- |
- |
- |