Resources
Grades

SAFEGUARD® Cover Grit Size Options

At the heart of every SAFEGUARD® Cover is the unique layered resin surface with embedded grit that delivers the ultra-safe Hi-Traction characteristic. Every SAFEGUARD® Cover offers high anti-slip properties, but depending on the application, smaller or larger grit can be specified.

Hardness of Grit

Mohs Hardness Scale
Diamond 10.0
Fused Alumina
Used in Safeguard Products
9.4
Quartz/Silica Sand
Most Anti-Slip Products Including Tapes
6-7
cross section closeup of a Safeguard cover

We incorporate fused alumina into all of our anti-slip products - a hard, sharp edged aggregate that measures 9.4 on the Moh’s Hardness Scale. Comparatively, most tapes and paints contain quartz or silica - in other words, sand. These rank only 6 to 7 on the Moh’s scale, indicating a soft aggregate that will quickly wear away under foot traffic, leaving your surface more hazardous than ever.

Coefficient of Friction (COF)

Coefficient of friction is the measure of a product’s ability to provide safe traction and thereby prevent slips-and-falls. Our fused alumina aggregate creates a superior coefficient of friction - nearly double OSHA, ADA, and APTA standards, not only when flat but also at an incline, and even when wet, oily, or dusty.

COF Testing

SAFEGUARD® products have been tested for coefficient of friction values using the Brungraber Mark II testing device as well as the English XL VIT test apparatus. These are considered the most reliable and the standard for measuring COF. Read more about testing here.

COF Graph

Six Standard Grades

Six grit sizes are available to address any application, from shower areas to offshore drilling platforms.

Super Coarse (Extreme) Grade
Super Coarse (Xtreme™) Grade
Extra Coarse (Offshore/Heavy Duty) Grade
Extra Coarse (Offshore/Heavy Duty) Grade
Coarse (Industrial) Grade
Coarse (Industrial) Grade
Fine (Commercial) Grade
Fine (Commercial) Grade
Extra Fine (Residential) Grade
Extra Fine (Residential) Grade
Super Fine (Barefoot) Grade
Super Fine (Barefoot) Grade

Average Size of Grit (Aggregate)

Grade Mesh Inches Microns Millimeters
Super Coarse (Xtreme) 3/6 0.2 5000 5.08
Extra Coarse (Offshore/Heavy Duty) 10 0.085 2125 2.159
Coarse (Industrial) 20 0.033 850 0.838
Fine (Commercial/Pedestrian) 24 0.027 700 0.686
Extra Fine (Residential) 36 0.019 485 0.483
Super Fine (Barefoot) 54 0.012 305 .305


Average Thickness of Finished Product

Product                                     Super Coarse Extra Coarse Coarse        Fine             Extra Fine       Super Fine        
Stainless or Galvanized Steel
18 Gauge / 0.048 in / 1.2 mm
0.30 in
7.6 mm
0.18 in
4.6 mm
0.11 in
2.8 mm
0.10 in
2.5 mm
0.09 in
2.2 mm
0.08 in
2.0 mm
Pultruded FRP Composite
0.125 in +0.010 / -0.005
3.2 mm +0.3 mm / -0.1 mm
0.38 in
9.7 mm
0.26 in
6.6 mm
0.19 in
4.8 mm
0.18 in
4.6 mm    
0.17 in
4.3 mm           
0.16 in
4.1 mm              
1 mm Molded Fiberglass NA 0.12 in
3.15 mm
0.07 in
1.8 mm
0.07 in
1.7 mm
0.06 in
1.5 mm
0.05 in
1.3 mm
Vinyl (Flexible PVC)
0.024 in / 0.60 mm
NA 0.15 in
3.8 mm
0.08 in
2.1 mm
0.07 in
1.9 mm
0.06 in
1.6 mm
0.05 in
1.3 mm
Geomembrane
Roll-Traction®
NA NA 0.101 in
2.6 mm
0.095 in
2.4 mm
0.087 in
2.2 mm
0.080 in
2.0 mm
Heavy Duty Aluminum

0.54 in
13.6 mm

0.42 in
10.6 mm
0.35 in
8.8 mm
0.34 in
8.5 mm
0.33 in
8.3 mm
0.32 in
8.0 mm