WS-33 Pyramid Sound Deadening Soft Durometer Cabinet Bumpers


A unique sound minimizing cabinet bumper design muffles door closings while not sacrificing space. At just over 1/8″ thick this is the thinnest quiet close cabinet bumper on the market. The unique design disperses sound evenly from the bumper to minimize noise. Soft material helps minimize the amount of sound that needs to be muffled. Available in quantities from 40 to 100,000 bumper orders.

Cross Reference: BS-33, BS-33SD, SJ 6553, SJ6553, 4066-00

Available in: Clear

  • Sound and vibration dampening bumper, soft durometer
  • A good alternative to other brands and the ws-58 when thickness is an issue
  • Physical design softens sound by dispersing sound evenly from bumper
  • Synthetic rubber adhesive works on most surfaces, including melamine
  • UL Recognized
  • Easy peel off application
  • Non-staining, non-marring, crack resistant and resilient
  • Contains no plasticizers, oils, or fillers
  • Material: Polyurethane
  • Adhesive: Aggressive synthetic rubber
  • SoftnessL Durometer, Shore A: 50-55
SKU: WS-33SDCL Category:

Available Options:



English Metric
Diameter (Width) 1/2″ 12.7 mm
Height (Projection) 5/32″ 3.8 mm


Full Case Layout

pcs per full case 5000
pcs per pad 200
pads per case 25
pad piece layout 20 across x 10 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

Disclaimer: Although we try our best to provide reliable information. Due to the many applications of our products, we recommend performing suitability tests for your particular application. Do not solely use this information to determine the usability of these products for your application. No person is authorized to assume any liability or obligation for the suitability of this product for a particular application.

Warning: Choking Hazard. Bumpers are not recommended where toddlers or infants are present.

Additional information



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