3M™ Bumpon™ SJ5303 Adhesive Bumper

3M™ Bumpon™ SJ5303 Adhesive Bumper, High-Performance Transparent Protection

The 3M™ Bumpon™ SJ5303 adhesive bumper protects your surfaces from impacts, scratches, and vibrations. Discrete and transparent, it blends into any environment.

Its high-performance acrylic adhesive ensures long-lasting hold on metal, plastic, wood, or glass, without leaving any residue upon removal.

Ideal for industrial, electronic, or furniture applications, the Bumpon™ SJ5303 is a reliable reference signed by 3M™.

Presentation of the 3M™ Bumpon™ SJ5303 adhesive bumper

The 3M™ Bumpon™ SJ5303 adhesive bumper is a transparent polyurethane protective pad, designed to dampen impacts, reduce vibrations, and protect sensitive surfaces.

Its low hemispherical shape and permanent adhesive backing allow for quick installation, without tools or screws. It attaches to almost any material: metal, wood, glass, plastic.

At Dagobert Industrie, we recommend it for indoor applications requiring discretion and efficiency: cabinet doors, electronic housings, household appliances, office equipment.

Technical characteristics and dimensions

• Material: transparent polyurethane (PU)
• Shape: hemispherical
• Diameter: 9.5 mm
• Height: 2.4 mm
• Adhesive: 3M permanent acrylic
• Operating temperature: -40 °C to +70 °C
• Color: transparent

The polyurethane offers good resistance to abrasion and compression. The pad returns to its original shape after being crushed, which guarantees an extended service life.

Reference	Material	Diameter	Height	Typical usage
3M™ Bumpon™ SJ5303	Transparent polyurethane	9.5 mm	2.4 mm	Discrete protection, indoor
3M™ Bumpon™ SJ5302	Transparent polyurethane	7.9 mm	2.2 mm	Small surfaces, electronics
3M™ Bumpon™ SJ5307	Transparent polyurethane	12.7 mm	4.1 mm	Greater damping
3M™ Bumpon™ SJ5012	Black elastomer	12.7 mm	5.3 mm	Heavy loads, intensive use

Materials and design: what makes the Bumpon™ SJ5303 strong

The Bumpon™ SJ5303 is manufactured from thermoplastic elastomer (TPE), a flexible, resistant, and stable material over time.

This TPE absorbs shocks and vibrations without permanently deforming. It returns to its initial shape after compression, which guarantees constant protection over time.

The transparency of the SJ5303 is a concrete asset: the bumper blends into the decor. It does not hide surfaces, whether they are glass, brushed metal, or varnished wood.

The back is equipped with a high-performance 3M acrylic adhesive. It adheres to most clean and dry surfaces, without screws or drilling.

The SJ5303 features a low hemispherical profile: approximately 3.2 mm in diameter for 1.5 mm in height. This discrete format is suitable for tight assembly clearances and applications where space must remain minimal.

The material is resistant to light oils, moisture, and common cleaners. It supports a temperature range from approximately -40 °C to +70 °C, making it usable both indoors and in moderate industrial environments.

Product	Material	Shape	Height	Color	Typical usage
3M™ Bumpon™ SJ5303	TPE	Low hemisphere	~1.5 mm	Transparent	Discrete protection, electronics, furniture
3M™ Bumpon™ SJ5012	TPE	High hemisphere	~5.3 mm	Transparent	Doors, housings, greater spacing
3M™ Bumpon™ SJ5076	TPE	Flat square	~1.6 mm	Black	Electronic devices, housing feet
Tesa® 60950 (adhesive pads)	PU foam	Flat cylinder	~3 mm	White/transparent	Light damping, office use

Applications and fields of use for the SJ5303 bumper

The 3M™ Bumpon™ SJ5303 adhesive bumper is a transparent hemispherical pad that sticks in seconds and protects surfaces against shocks, scratches, and vibrations.

Its total transparency makes it an ideal choice when aesthetics matter: it remains discreet on glass, plastic, lacquered wood, or polished metal.

Typical uses

• Consumer electronics: feet for phones, tablets, speakers, power adapters
• Furniture and decoration: underside of photo frames, mirrors, decorative objects placed on furniture
• Industrial equipment: covers, control boxes, interior signage panels
• Household appliances: feet for small appliances, bins, sliding trays
• Store layout: displays, showcases, display supports

In an industrial environment, the resistance to light oils and common cleaners allows it to be used on equipment wiped down regularly without the pad peeling off.

The integrated 3M adhesive back avoids any screwing or drilling. The application is permanent on most clean and dry surfaces.

Quick comparison-3M™ Bumpon™ range

Reference	Shape	Height	Color	Main usage
SJ5303	Hemispherical	2.4 mm	Transparent	Electronics, furniture, aesthetic
SJ5302	Hemispherical	1.6 mm	Transparent	Very thin surfaces, small devices
SJ5308	Hemispherical	3.2 mm	Black	Industry, heavy equipment
SJ5012	Flat cylindrical	3.2 mm	Black	Damping, anti-vibration

The SJ5303 stands out for its optimal height/discretion ratio: thick enough to dampen everyday shocks, flat enough not to unbalance a placed object.

Comparison: the 3M™ Bumpon™ SJ5303 range against other adhesive bumpers on the market

The market for transparent adhesive bumpers offers several references. The 3M™ Bumpon™ SJ5303 stands out with a rare balance between visual discretion, mechanical hold, and longevity.

Here is how it positions itself against the most common alternatives.

Comparison table of the main transparent adhesive bumpers

Product	Material	Shape	Height	Transparency	Temp. resistance	Typical usage
3M™ Bumpon™ SJ5303	Polyurethane	Hemisphere	3.2 mm	Total	-40 °C / +107 °C	Electronics, furniture, windows
3M™ Bumpon™ SJ5012	Polyurethane	Hemisphere	5.5 mm	Total	-40 °C / +107 °C	Housings, heavy equipment
3M™ Bumpon™ SJ5302	Polyurethane	Hemisphere	2.4 mm	Total	-40 °C / +107 °C	Small devices, optics
Generic silicone bumper	Silicone	Variable	Variable	Semi-transparent	-60 °C / +200 °C	High temperatures
Black EPDM bumper	EPDM	Cylinder / square	Variable	None	-40 °C / +120 °C	Industry, doors, hoods

The SJ5303 occupies a precise niche: a compact height of 3.2 mm, ideal when space is limited but real damping is necessary.

Compared to generic silicone bumpers, it offers significantly superior adhesion thanks to the 3M self-adhesive back. No additional glue, no drifting over time.

Compared to black EPDM bumpers, the advantage is obvious on visible surfaces: no colored traces, no aesthetic impact.

In summary, the SJ5303 is the right choice when three criteria count simultaneously: discretion, reliability of the adhesive, and durable mechanical resistance.

Installation tips and best practices for optimal adhesion

The SJ5303 adhesive bumper is easy to install, but a few precautions make all the difference between a fixation that lasts for years and one that peels off in a few weeks.

Clean the surface above all. Dust, degrease with isopropanol or a suitable cleaner. Even a slight trace of grease is enough to compromise the adhesion of the 3M self-adhesive back.

The surface must be dry and at room temperature. Below 10 °C, the adhesive struggles to make its initial bond. Avoid installation in a damp or cold environment.

Remove the protective film, position the bumper accurately at the first contact. Repeated repositioning weakens the adhesive.

Press firmly for 5 to 10 seconds on each bumper. A light, uniform pressure ensures total contact between the adhesive and the support.

Wait 24 to 72 hours before subjecting the fixation to repeated stress. The acrylic adhesive reaches its full strength after this maturation period.

Some surfaces to avoid or prepare with care:

• Low surface energy plastics (PE, PP): require an adhesion primer
• Recently painted surfaces (less than 30 days): risk of delamination
• Porous or textured surfaces: partial contact, reduced adhesion
• Galvanized or anodized steel: rigorous degreasing essential

On glass, smooth metal, or ABS plastic, the SJ5303 bumper adheres without any special treatment. This is where it performs at its best.

FAQ - 3M™ Bumpon™ SJ5303 adhesive bumper

1. What is the 3M™ Bumpon™ SJ5303 adhesive bumper concretely used for?

The SJ5303 protects contact surfaces against shocks, scratches, and vibrations.

It is used under electronic housings, household appliances, photo frames, lids, or any object placed on a sensitive surface.

Its transparent hemispherical profile makes it virtually invisible once stuck.

2. On which surfaces does this Bumpon adhere properly?

The 3M adhesive side clings effectively to smooth and clean surfaces: metal, plastic, glass, varnished wood, ceramic.

Porous, dusty, or oily surfaces reduce adhesion. Pre-cleaning with isopropanol significantly improves hold.

3. Does the SJ5303 resist heat and humidity?

Yes. The polyurethane material of the SJ5303 supports temperatures ranging from approximately -40 °C to +70 °C.

It also resists ambient humidity, making it suitable for environments such as kitchens, bathrooms, or workshops.

4. Can the SJ5303 bumper be removed and repositioned?

The SJ5303 is designed for permanent installation. Once stuck to a clean surface, it cannot be repositioned without the risk of damaging the adhesive.

If you need a repositionable solution, other Bumpon references with lighter adhesive are more suitable.

5. What is the difference between the SJ5303 and other Bumpon references like the SJ5302 or the SJ5312?

Bumpon references vary mainly by the height, diameter, and hardness of the pad.

The SJ5303 offers a low and compact profile, ideal when space is limited. The SJ5312 is higher and absorbs greater shocks. The SJ5302 is smaller, adapted for miniature applications.

At Dagobert Industrie, you will find several Bumpon references to cover all your protection needs.

6. Does the transparency of the SJ5303 last over time?

The transparent polyurethane of the SJ5303 resists yellowing well under normal indoor conditions of use.

Prolonged exposure to direct UV rays (intense sunlight) may slightly alter the tint over the long term. For intensive outdoor use, a colored version or a dedicated UV product is preferable.