WS-12SD Hemispherical Soft Durometer Polyurethane Bumper


This is the hottest hemispherical bumper on the market today. It’s soft durometer and versatile size makes this an excellent choice of bumper. It has an aggressive adhesive which means that this bumper will last for years. If properly applied, these bumpers don’t come off easily like some of those cheap bumpers you buy at the box stores!

Cross Reference: SJ 5306, SJ 5406, 4042-00, BS-12

Available in: Clear

SKU: WS-12SD Category:

Available Options:



English Metric
Diameter (Width) 3/8″ 9.5 mm
Height (Projection) 5/32″ 3.8 mm

Full Case Layout

pcs per full case 7200
pcs per pad 288
pads per case 25
pad piece layout 24 across x 12 down
Polyurethane Specifications
Spec Name Value
Tensile Strength, psi 750psi
Elongation,% 607%
Tear Strength, pli 127 pli
Hardness, Shore A 50-55 Shore A
Bashore Rebound, % 35%
Abrasion Resistance g/1K cycles Tabor 0.010
QUV (500 hours) DNA
Adhesive Specifications
Spec Name Value
Static Shear Test 300+ hours
Quick Tack – Stainless Steel 77 oz/in2
Peel Adhesion 64 oz/in
Substrate: Thickness 2 mils
Substrate: Weight 10,000 in2/lb
Substrate: Tensil Strength 28,000 psi MD
Liner: Thickness 6.2 mils
Temperature: Application 65 deg F – 150 deg F
Temperature: End Use 0 deg F – 180 deg F
Substrate Elongation 120% MD
Shelf Life 24 months
Storage 73.4 deg F and 55% rel humidity
Liner: Basis Weight 92.0 lb


Additional information




Package Size

, , , ,


There are no reviews yet.

Be the first to review “WS-12SD Hemispherical Soft Durometer Polyurethane Bumper”

Your email address will not be published. Required fields are marked *