3 | Mounting the NAV-900 Guidance Controller
NAV-900 Guidance Controller Installation Instructions | 19
VHB (double-sided tape) style mounting
The VHB tape option is standard with some display system kits and can be used if no factory-fitted
mount or Spar mount option is available.
VHB tape – 3M application guidelines
• Mating surfaces: (tractor roof) are best prepared by cleaning with a 50:50 mixture of isopropyl
alcohol (IPA) and water prior to applying 3M™ VHB™ tapes.
• 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.
• Temp e ra tu re : Ideal application temperature range is 70°F to 100°F (21°C to 38°C). Pressure
sensitive adhesives use viscous flow to achieve substrate contact area. Minimum suggested
application temperatures: 50°F (10°C).
• Pressure: 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.
Typically, good surface contact can be attained by applying enough pressure to insure that the tape
experiences approximately 15 psi (100 kPa) pressure.
• Time: After application, the bond strength will increase as the adhesive flows onto the surface. At
room temperature approximately 50% of ultimate bond strength will be achieved after 20 minutes,
90% after 24 hours and 100% after 72 hours.
• Disassembly and removal of residue: To remove: If the assembled area can cope with an elevated
temperature, a hand-held heat gun can soften the tape for ease of removal. Additionally, cutting
through the adhesive bond-line is an effective method of removal. Use an appropriate saw or tool. A
soapy water solution can be effective to help ease of cutting. Remove adhesive residue using a 3M
citrus-based cleaner, Automotive Bug and Tar remover, or other commercial adhesive removers.
(Follow manufacturers instructions and safety precautions).
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