Lagging Performance Specifications

HOT VULCANISED RUBBER LAGGING – WEAR INDICATOR

Rubber lagging manufactured using an extremely abrasion resistant top rubber layer and an uncured bonding layer to provide high levels of adhesion after autoclave curing.

RUBBER PROPERTIES – Top Layer

Base Polymer

Natural or Synthetic Rubber

Hardness Range 65+/-5 ASTM D2240
Tensile Strength >15 MPa ASTM D412
Elongation at Break > 500% ASTM D412
Abrasion Loss (Volume Loss) <80 mm3 DIN 53516
Tear Strength <40N/mm ASTM D624
Colour Black

RUBBER PROPERTIES – Coloured wear indicator layer

Base Polymer

Synthetic Rubber Blend

Hardness Range 65+/-5 ASTM D2240
Tensile Strength >20 MPa ASTM D412
Elongation at Break > 500% ASTM D412
Abrasion Loss (Volume Loss) <90 mm3 DIN 53516
Tear Strength <40N/mm ASTM D624
Colour Non Black – Yellow, Red or Blue

ADHESION REQUIREMENTS

Adhesion to Steel @ 25 C >20 N/mm & 100% Rubber Tear ASTM D429 Method B
Adhesion to Steel @ – 40 C >20 N/mm & 100% Rubber Tear or equivalent
Adhesion to Steel @ +50 C >10 N/mm & 100% Rubber Tear ASTM D429 Method B
Thickness Available 15 mm, 20 mm, 25 mm
Nominal Thickness +/-1.0 mm
Thickness Variation (all strips/pulley) +/-0.5 mm

Thickness variation is measured on both sides of each lagging strip at each end and in the centre i.e. 6 points on each strip.

Width 250 mm+- 2mm
Roll length 9.7 m