The purpose and classification of foam tape are completely explained
Foam tape is made of EVA or PE foam base material coated with solvent (or hot melt) pressure-sensitive adhesive on one or both sides and then made of release paper. It has the function of sealing and damping.
It has excellent sealing, compression deformation resistance, flame retardant, wettability, and so on.
The main characteristics of foam tape
1, with excellent sealing, avoid gas release and atomization.
2, excellent compression deformation resistance, that is, the elasticity is durable, can ensure that the accessories get long-term shock protection.
3, with flame retardant, does not contain harmful and toxic substances, will not remain, will not pollute the equipment, and is not corrosive to metal.
4,can be used in a variety of temperature range. Can be used from negative degrees Celsius to normal range.
5, the surface has excellent wettability, is easy to bond, is easy to make, and is easy to punch.
6, holding viscosity for a long time, peeling large, strong initial viscosity, good weather resistance! Waterproof, solvent resistant, high-temperature resistance, good adhesion on curved surfaces.
Classification of foam tape
According to the adhesive system, it is hot melt adhesive foam tape and oil adhesive foam tape.
According to the size of the foam space: open hole type foam-tape; Closed-cell foam -tape; Semi-closed cell foam -tape.
According to the characteristics: high temperature resistant foam tape; Flame-retardant foam -tape; Conductive foam tape; High density foam- tape; Low density foam tape.
According to the substrate: PE/IXPE foam tape; EVC foam -tape; PVC foam -tape; PU foam -tape; EPDM foam tape; CR foam -tape; SBP foam -tape; NBR foam tape.
Several common categories of foam tape
1. PE foam double-sided tape
PE foam double-sided tape generally refers to the PE foam on both sides of the substrate coated with acrylic glue made of double-sided tape. The color of this foam double-sided tape is mainly white, black, and gray.
Generally suitable for photo frame decoration strip, furniture trim strip, car trim strip, wave board, wheel arc, block flow, plate brake light, car logo, motorcycle label, electrical nameplate, top strip, and other aspects of the pasting fixed role, with strong adhesion, good retention, UV resistance, temperature resistance, water resistance, solubility resistance, and plastic resistance. Generally, it can be used between -20℃ and 120℃.
2. EVA foam double-sided tape
EVA foam is divided into fireproof EVA foam, anti-static EVA foam, white EVA foam, EVA foam lining, EVA foam pad, EVA foam board, EVA cylindrical foam, red EVA foam, black EVA foam, color EVA foam
Conductive foam: conductive EVA foam, all-around conductive foam, conductive pe foam,cr foam, PU foam, shaped conductive foam, EVA foam, aluminum foil conductive foam, black conductive foam, conductive foam shielding material.
EVA foam double-sided tape mainly refers to the EVA foam on both sides of the substrate coated with adhesive made of double-sided tape.
Its adhesive has oil glue, hot sol, and rubber glue; the color is rich, white, gray, black, and other colors; this foam double-sided tape has good shock buffering performance, closed hole, sound insulation effect is good, heat insulation, moisture-proof, chemical corrosion resistance, and other advantages and meet the requirements of environmental protection.
Generally applicable to a variety of electronic products, electrical appliances, automobiles, communications, computers, toys, household hooks, sports equipment, plastics, hardware, and other industries for the use of auxiliary materials, the common density is between 38 degrees and -48 degrees, the special density is between 50 degrees -80 degrees, the common thickness is 0.5mm-50mm. Generally, we use white or yellow release paper; it is generally applicable between 20℃ and 60℃.
3. PU foam double-sided tape
PU foam double-sided tape generally refers to a double-sided tape made of acrylic glue coated on both sides of a PU foam (polyurethane) substrate.
Its color is white and black, commonly used thicknesses of 0.8mm and 1.6mm, two kinds, mainly covered with blue grid release paper, generally has strong adhesion, good adhesion, water resistance, good hardness, good toughness, and strong weight resistance characteristics, this foam double-sided tape is suitable for hooks, billboards, picture boards, plastic strips, metal sheets, etc. It is generally applicable between -20℃ and 120℃.
4. Acrylic foam double-sided tape
Acrylic foam double-sided tape generally refers to the acrylic foam on both sides of the substrate coated with acrylic glue made of double-sided tape.
Its color is white, gray, transparent color, and black, and the thickness is also more, mainly 0.25mm, 0.4mm, 0.5mm, 0.64mm, 0.8mm, 1.2mm, 1.6mm, 2.0mm, 3.0mm several specifications, release has white release paper and red release film, This foam tape has the advantages of high adhesion, high retention, water resistance。
Temperature resistance, strong load-bearing capacity, etc., is the best one of all foam, and can be used in the adhesion and fixing of anti-friction strips, pedals, sunshades, seals, anti-collision strips, rear fenders, nameplate decoration strips, door perimeter protection strips, glass curtain walls, metal products, etc. It is generally applicable between -20℃ and 120℃.
Use and storage method of foam tape.
Storage method: The appropriate temperature of foam tape is 21 degrees Celsius –38 degrees Celsius, and the appropriate pressure is at least 5KG/㎡. Prohibit contact with organic solvents of acid and alkali oil, keep clean and dry, and the room temperature is between -15 degrees Celsius and 40 degrees Celsius.
When using foam as a substrate, it is very suitable for irregular surfaces because of its very soft texture. It also has a good smoothing effect on moving and stretched materials. The ability to absorb load is also very strong. In PVC Windows, refrigerators, furniture and decorative profiles, foam cotton is widely used as a base material, mainly because it provides ideal support for very tight bonding.
The printing industry is also one of its areas of particular expertise. The foam hardness in the tape determines the contact pressure of the plate, which in turn helps the press control the grid points on the paper. Foam tape can also absorb the vibration generated by the high-speed operation of the printing press to avoid stripes during the printing process.
With the emergence of new foam materials, there will be more foam base tape. The company will not forget the original intention, forge ahead, research and development, and production of better tape products.
