3M

08300 • 08301 • 08302

Typical Performance

Properties

Note: The following technical information and data should be considered representative

or typical only and should not be used for specification purposes.

1. Sag Resistance, @ 30 minutes

1/4 inch bead

0 inch

3/8 inch bead

0 inch

2. Tack Free Time @ 75°F

45 minutes

3. Adhesion To:

Glass

Good

Painted Metal

Very Good

Aluminum

Good

4. QUV 150°F/500 hours

No effect on clarity or elastomeric properties

5. Flexibility (60 mil spread)

Flexible over a 2 inch mandrel @ -20°F

6. Hardness, Rex

45

Directions for Use

NOTE: 3M Best Practice is that all sealers, unless designated specifically for use on

bare metal, be applied to properly prepared automotive paint, primer or E-coat. Applying

over bare metal may not provide adequate corrosion protection.

Acid etch primer is not recommended to be used in direct contact with any

3M seam sealer. Residual acid can weaken the bond.

1. For primer coated areas, lightly scuff the area where the sealer is to be applied with a

fine abrasive or scuff pad. For paint coated areas using clear sealer application perform

cleaning operation only.

2. Clean the surface with an appropriate VOC compliant product for removal of surface

contaminants.

3. (PN08300 ONLY) Cut nozzle tip to provide desired size bead. Puncture foil seal in

base of spout. Knock out end seal at the bottom of the tube.

4. (PN08300 ONLY) Place in 3M™ Professional Caulking Gun, PN 08993

and engage ratchet mechanism.

5. Apply desired bead width and tool to final appearance, if necessary. When sealing is

complete, disengage ratchet to stop flow.

6. Wait to dry before applying paint over the sealer. Thicker beads of seam sealer will

take longer to cure before painting.

Applications

A variety of external or non-passenger compartment sealing applications on automobiles.

Also used in many non-automotive applications (always test to determine suitability).

NOTE: 3M does not recommend using this seam sealer in interior passenger compartment

or trunk compartment applications. A residual solvent odor lasting up to a month has been

reported by customers using the product. For seam sealers without this issue, choose 3M™

Urethane Seam Sealers (PN 08360/08361/08364) or 3M™ MSP Seam Sealers (PN

08369/08370).

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