Compare our products - your at-a-glance guide

Use the following table to help you decide on the most appropriate wooden floor underlay for your particular requirements:

Product comparison Chart	SONIC	MULTI	ULTRA	ASTRO -FOAM	ASTRO -DPM	MULTI -PLUS	ALU -FOAM
Impact sound transmission	SL30	22dB	22dB	18dB	18dB	18dB	18dB
Compressive strength	28kPa	28kPa	28kPa
Compressive creep	3kPa	3kPa	3kPa	18.3%	18.3%	18.3%	18.3%
Water vapour diffusion	>100m	21m	21m	7.5m	>100m	7.5m	7.5m
Thermal resistance (m2 K/W)	0.088	0.088	0.088	0.058	0.058	0.088	0.088
Drum sound improvement	✔	✔	✔
Physically cross-linked polyolefin foam	✔	✔	✔
Closed cell structure	✔	✔	✔	✔	✔	✔	✔
Conformable, smooths out irregular surface	✔	✔	✔	✔	✔	✔	✔
Shock absorbent	✔	✔	✔	✔	✔	✔	✔
Dust free, no odour, allergy friendly	✔	✔	✔	✔	✔	✔	✔
Anti fungal, mildew resistant	✔	✔	✔	✔	✔	✔	✔
Easy to lay	✔	✔	✔	✔	✔	✔	✔
Lightweight and elastic, will not break	✔	✔	✔
Firm cushion support for improved comfort	✔	✔	✔
Ultra smooth, soft quality surface	✔	✔	✔
Withstand high weight surface loads	✔	✔	✔
Suitable for underfloor heating systems	✔	✔	✔	✔	✔	✔	✔
Adhesive backing for strong & quick application		✔				✔
Water/moisture barrier lock and overlap					✔	✔	✔