Underlay

Defender

A high density textured flat sponge rubber underlay for general commercial and hospitality use. Provides extra underfoot comfort and helps to prolong life of the carpet.

Minimises carpet rucking.

Highly recommended for use in Hotel Guest Rooms, Hotel Corridors, Restaurants, Small Function Rooms, Lounges, Gyms, Fitness Rooms and Offices.

 

 

 

TECHNICAL SPECIFICATIONS:
(Test Results To BS. 5808: 1991 - British Standard For Carpet Underlays)

 

SPECIFICATION BS REQUIREMENTS RESULT METHOD
WEIGHT   3017g/m² (89 oz/yd²)
  BS 4051
THICKNESS   6.1mm  
ROLL SIZE  

1.33m x 11.33m
 (ca. 15.07sqm)

 
MEAN ORIGINAL THICKNESS FROM NOMINAL THICKNESS Maximum 12% 5.3%  
DIFFERENCE BETWEEN MAX./ MIN. ORIGINAL THICKNESSES Maximum 3mm 0.3mm
 
BREAKING STRENGTH
Length
Width
Minimum 40N  
182N
126N
BS 2576
EXTENSION UNDER FORCE
Length
Width
Maximum 10% @ 40N  
2.2%
1.0%
BS 2576
WORK OF COMPRESSION Min. 50 J/m² after dynamic loading for 1000 impacts 140 J/m² BS 4098
& BS 4052
COMPRESSION AFTER DYNAMIC LOADING Minimum 2mm, maximum 7mm after 1000 impacts 3.0mm BS 4098
& BS 4052
RETENTION OF WORK OF COMPRESSION Min. 40% of original after dynamic loading for 1000 impacts 85% BS 4098
& BS 4052
LOSS IN THICKNESS AFTER DYNAMIC LOADING Max. 15% after 1000 impacts 3.5% BS 4052
LOSS IN THICKNESS AFTER STATIC LOADING Max. 15% after 24 hrs recovery
4.5% BS 4939
RESISTANCE TO CRACKING Not greater than 50mm Pass BS 5808

FLAMMABILTY

CRITICAL RADIANT FLUX

 
Hot Metal Nut Test

 

 

 
Pass low radius of effects of ignition
-Test in UK laboratory

 

 

NFPA Class 1

 

NFPA 253 / ASTM E648-03
BS 4790 & BS 5297

THERMAL PROPERTIES
Thermal Properties (Tog)
   
0.80
 
BS 4745
ACOUSTIC
Weighted Reduction in impact sound pressure level (Delta Lw)
    
30dB
 
BSEN ISO 140-8: 1998
& BSEN ISO 717-2: 1997
EMISSIONS
US Carpet & Rug Institute
 
Meets low VOC emission criteria
ODOUR No objectionable odour    
ORIGIN United Kingdom

END OF CLASSIFICATION

COLOR AND APPEARANCE

HC/U, Heavy Contract Use

Green textured flat sponge rubber with printed Textron paper backing

BS 5808:1991

 Defender Catalogue

 
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