BLACKROCK

BLACKROCK

MEDIUM WEAR SHEETING ROUND GRAIN MATERIAL

Overview

Features

Natural rubber, black, 60 Shore A, with good abrasion resistance.

Benefits

Reliability Economy Safety

Applications

Hoppers, chutes, etc., linings to protect equipment subject to medium wear due to working conditions (for example, moisture), composition (for example, high percentage of fine grain size products), shape or nature of the products.

Areas of activity: sand and gravel quarries, aggregate and cement industries, foundries, etc.

Advantages

Good shock impact, tear, and abrasion resistance
Good heat and ageing resistance
Noise and vibration propagation reduction
Protection against corrosion
Good ratio quality/price
Possibility to be produced with bonding layer for cold vulcanizing or with steel backing for mechanical fixing

Mechanical, Physical and Chemical Properties

Mechanical

Measure characteristic

Standard

Value

Rubber compound - Black

R698 

Density

1.21 ±0.05

g/cm³

Hardness

ASTM D2240

60 ±5

Shore A

Tensile strength

ISO 37

≥15

MPa

Elongation at break

ISO 37

≥400

%

Tear resistance

ISO 34-1

≥40

N/mm

Abrasion resistance (10N)

ISO 4649

≤130

mm³

Compression set after 22h at 70°C

ISO 815-1

≤35

%

 

Temperature

Measure characteristic

Standard

Value

Working temperature

-40/+85

°C

 

Ageing

Measure characteristic

Standard

Value

∆ Hardness after 70h at 70°C

ASTM D573

≤5

Shore A

∆ Tensile strength after 70h at 70°C

ASTM D573

≤-15

%

∆ Elongation at break after 70h at 70°C

ASTM D573

≤-25

%

 

Chemical Resistance

Diluted acids and bases

Concentrated acids and bases

Ozone

Oils and hydrocarbons

Good

Medium

Medium

Non suitable

 

Dimensions

Thickness (mm) Width (mm) Length (m) Weight (kg/m2) Sides finish Option

1

±0.3

1400

±2%

20

±2%

1,2

2 smooth sides

-

1,5

±0.3

1400

±2%

15

±2%

1,79

2 smooth sides

-

2

±0.3

1400

±2%

15

±2%

2,4

2 smooth sides

-

3

±0.3

1400

±2%

10

±2%

3,59

2 smooth sides

-

4

±0.4

1500

±2%

10

±2%

4,78

2 sides matt

-

5

±0.4

1500

±2%

10

±2%

5,98

2 sides matt

-

6

±0.5

1500

±2%

10

±2%

7,36

1 side matt/1 side bonding layer

BL

6

±0.5

1500

±2%

10

±2%

7,18

2 sides matt

-

8

±0.7

1500

±2%

10

±2%

9,75

1 side matt/1 side bonding layer

BL

8

±0.7

1500

±2%

10

±2%

9,57

2 sides matt

-

10

±1.0

1500

±2%

10

±2%

12,14

1 side matt/1 side bonding layer

BL

10

±1.0

1500

±2%

10

±2%

11,96

2 sides matt

-

12

±1.0

1500

±2%

6

±2%

14,53

1 side matt/1 side bonding layer

BL

12

±1.0

1500

±2%

10

±2%

14,35

2 sides matt

-

15

±1.0

1500

±2%

6

±2%

18,12

1 side matt/1 side bonding layer

BL

15

±1.0

1500

±2%

10

±2%

17,94

2 sides matt

-

20

±1.4

1500

±2%

6

±2%

23,98

1 side matt/1 side bonding layer

BL

20

±1.4

1500

±2%

10

±2%

24,04

2 sides matt

-

25

±1.75

1500

±2%

6

±2%

30,08

1 side matt/1 side bonding layer

BL

25

±1.75

1500

±2%

6

±2%

30,14

2 sides matt

-

Identification

Branding

Without.

Packaging

Thickness ≤6mm rolled on cardboard tube Ø 80mm.
Thickness >6mm in roll.
Bonding layer internal side protected by a white polypropylene film, easily removable by hand.

Wrapping

Black polyethylene film.

Labelling

Self-adhesive label indicating product name, dimensions, area in m², nominal weight, and product code to allow product traceability.

 

Downloads

Product Sheet

Product Sheet (PDF)  

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