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• This auctionis for Size 100mmx100mm 3M 4991 Double Sided stickers Specification3M VHB 4991VHB=Very Hing BondColor: GraySize:100mmx100mmThickness:2.3mmBrand New and High qualityRecommended ReasonsNo holes to drill, no riveting, no liquid adhesives to cure, no weld distortion, no clear up.VHB Tapes Prevents corrosion through keeping apart dissimilar metals.Is invisible and removes ugly rivets, spot welds, screw-heads or nuts and bolts.Meets a wide range of maintaining standards for tough purposes involving glass, metals, woods, composites and plenty of plastics.Damps vibration and reduces noise.Resists solvents and salt water. Seals and bonds even in extreme environments.Can catch up on thermal expansion and contraction of bonded parts.Distributes stress. Excellent for skinny materials.Fast, clear and simple to apply. Reduces meeting costs.How to apply this tape?Clean: For most bond strength,the surface ought to be clean, dry, smooth, haven't any rust and oil pollution. Typical cleansing solvents are heptane or isopropyl alcohol.Pressure: Pressure on the adhesive and the surface will help upgrade bond strength,roller or platen could be used.Time: After application, the bond energy increases because the adhesive flows onto the surface. At room temperature roughly 50% of final bond strength might be done after 20 minutes, 90% after 24 hoursand 100 percent after seventy two hours.Temperature: Ideal software temperature differ is 70°F to 100°F (21degree centigrade to 38degree centigrade).Operating temperature should not be beneath 10 degree centigrade, the temperature is simply too low, will result in remedy time longer. If temperature is simply too low, circulation material and adhesive tape into the nice and cozy indoor storage or heating treatment.Q. What % of the ultimate bond strength can I expect straight after application? After 24 hours? After 72 hours?A. Immediately after an software is made, about 60% of the bond strength is achieved. As the adhesive continues to wet-out the surface, you can count on the bond to be at about 75% - 80% after 24 hours. After72 hours, 95%+ of the bond power is achieved. The bond will proceed to construct with time.Q. Is the tape solvent resistant?A. Yes, 3M acrylic foam tapes are proof against most typical automotive solvents like gasoline, diesel fuel, washer solvent, etc. Solvent resistance is a operate of variety of solvent, time of publicity and temperature.Q. Why doesn`t the tape really feel sticky?A. 3M`s high functionality acrylic adhesives are usually firm and dry to the touch. They are designed to bond supplies apart from skin. The adhesives used are designed to present optimal performance and adhesion to car substrates and components. The natural oils and moisture of skin canvary from consumer to person and impact the "thumb appeal" of the 3M Acrylic Foam Tape. To one user the tape can feel very sticky and to a different it would really feel much less sticky to the touch. The distinction in "thumbappeal" is within the variation of the two individual`s skin surfaces no longer the adhesive.Q. The section is not adhering to the vehicle. What might be wrong?A. Areas to investigate for deficient adhesion or performance include:Check for floor contamination. The substrates should be clear and freed from any contaminant. This is the most common explanation for deficient adhesion.Check for floor match. Are the two surfaces to be bonded a reputable match?Check for correct software stress and wet-out.Check the back of the component for flatness.Check the installation activity for correct procedures

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