Справочник Пользователя для 3M vhb tape surface preparation tech. bulletin

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Most substrates are best prepared by cleaning with a 50:50 mixture of isopropyl alcohol (IPA)
and water* prior to applying 3M™ VHB™ Tapes.

Exceptions to this general procedure that may require additional surface preparation include:
• Heavy Oils: A degreaser or solvent-based cleaner may be required to remove heavy oil or

grease from a surface and should be followed by cleaning with IPA/water.

• Abrasion: Abrading a surface, followed by cleaning with IPA/water, can remove heavy dirt

or oxidation and can increase surface area to improve adhesion.

• Adhesion Promoters: Priming a surface can significantly improve initial and ultimate

adhesion to many materials such as plastics and paints.

• Porous Surfaces: Most porous and fibered materials such as wood, particleboard, concrete

etc. need to be sealed to provide a unified surface.

• Unique Materials: Special surface preparation may be needed for glass and glass-like

materials, copper and copper containing metals and plastics or rubber that contain
components that migrate (e.g. plasticizers).

*Note: These cleaner solutions contain greater than 250 g/l of volatile organic compounds (VOC). Please consult your
local Air Quality Regulations to be sure the cleaner is compliant. When using solvents, be sure to follow the manufacturer’s
precautions and directions for use when handling such materials.

• To obtain optimum adhesion, the bonding

surfaces must be well unified, clean and
dry. Typical surface cleaning solvents are
IPA/water mixture (rubbing alcohol) or
heptane.* (Steps A and B)

• Bond strength is dependent upon the

amount of adhesive-to-surface contact
developed. Firm application pressure
develops better adhesive contact and helps
improve bond strength. (Steps C and D)

Generally, this means that the tape should
experience at least 15 psi (100 kPa) in roll
down or platen pressure. 

(Sources- page #4)

• After application, the bond strength 

will increase as the adhesive flows 
onto the surface. At room temperature,
approximately 50% of the ultimate
strength will be achieved after 
20 minutes, 90% after 24 hours and 
100% after 72 hours. In some cases, 
bond strength can be increased and
ultimate bond strength can be achieved
more quickly by exposure of the bond 
to elevated temperatures (e.g. 150°F
[66°C] for 1 hour).

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20 MIN

1 HOUR

24 HOURS

72 HOURS

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150°F or ABRADE

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50°F

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ROOM TEMP

PERCENT OF FULL BOND

Step A:
Solvent wipe

Step B:
Wipe dry

Step C:
Apply tape to surface

Step D:
Roll finished joint

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