1. If a bumper was hit and appears to be dented, apply light heat to the damaged area and massage the back side of bumper to allow the plastic to come back to its natural state. If this step is omitted, the dent may result in "bull's-eye" in the repair area after placing it in the bake oven.
2. When prepping TPO, TEO and PP bumpers, always follow DA-sanding with 80-grit hand-sanding until surface has a light, fuzzy appearance. After sanding is completed, blow off and dry rage wipe the repair area. Do not use cleaners after the damaged area has been sanded.

1. To create a Class-A finish on a composite plastic panel repair, build a "pyramid patch" as follows:
   1. Use an angle grinder with a 36- or 40-grit wheel. Make a gradual taper in the repair area (about 2 inches [50.8 mm] wide) rather than a V-groove (see Illustrations A and B). This will prevent "bull's-eyes" or "readthrough" in the finished repair, as well as allow the panels to expand and contract in varying temperatures.
   2. Sand the prepared area with a DA sander or by hand using 80-grit sandpaper to smooth out the taper.
   3. Build a “pyramid patch” using LORD Fusor fiberglass Cloth (Stock #702) and LORD Fusor plastic panel repair adhesive (Stock #100EZ/101EZ) (see Illustration C)
2. When working in diffi cult areas such as corners, apply the adhesive to the repair area and lightly spread it. Then, lay a piece of plastic fi lm backing over the repair. This will help contour the repair material to the bumper.
3. When repairing bumpers, LORD 142/143 extreme bumper repair adhesive is recommended for use inmoderate temperatures, and LORD 152/153 extreme bumper repair adhesive is recommended
4. Do not use polyester body fillers over top of adhesives, as compatibility issues may result.

1. When using LORD Fusor two-component seam sealers and foam, dispense a small amount of product from the cartridge to level the plungers and ensure an even fl ow of both components. Attach a mixing tip and dispense mixer' length of material until the product is evenly mixed and the color is consistent.
2. Before using LORD Fusor 121/124 fl exible foam, be sure to clear the cartridge openings of any cured material.

1. Application of an epoxy primer is recommended for all seam sealers. Allow primer to cure completely per manufacturer's recommendations. Typical cure timesare 30 minutes at 140°F (60°C) or 2-3 hours at room temperature. Scuff-sand the primer prior to applying seam sealer.
2. When feathering urethane seam sealers, use a little water on the end of the tool. Solvents should not be used, as they are absorbed into the urethane sealers and may produce unsatisfactory results when painted.
3. If seam sealer is not painted within 3 hours of being applied, scuff the surface with a red Scotchbrite pad.

1. Application of an epoxy primer is recommended for all seam sealers. Allow primer to cure completely per manufacturer's recommendations. Typical cure timesare 30 minutes at 140°F (60°C) or 2-3 hours at room temperature. Scuff-sand the primer prior to applying seam sealer.
2. When feathering urethane seam sealers, use a little water on the end of the tool. Solvents should not be used, as they are absorbed into the urethane sealers and may produce unsatisfactory results when painted.
3. If seam sealer is not painted within 3 hours of being applied, scuff the surface with a red Scotchbrite pad.

1. Ensure the gun tip and nozzle are free of debris prior to spray application.
2. Completely remove cartridge foil from the barrel bottom.
3. Cut off the cartridge nipple at the extreme edge allowing most of the threads to be visible.
4. Purge out any air prior to spraying by pushing in cartridge piston by hand until some product comes out.
5. Tighten the gun barrel collars securely on both ends after cartridge insertion to prevent air leakage and spattering.
6. Air pressures set between 25-40 psi (0.17-0.28 MPa) at the wall work best.
7. Practice sprayable bead patterns before applying by spraying out on a scrap panel or cardboard. Start by adjusting the air control valve wheel from closed to slightly open, then adjust as desired. The fluid control can be adjusted for more product flow.
8. To change a cartridge that has not been completely emptied, unscrew both collars and remove thebarrel, then slip the cartridge out of the barrel. Doing this eliminates the possibility of seam sealer leakage and prevents a mess inside the barrel.

1. To apply a textured wheelhouse pattern or stone guard look, turn the airfl ow hand-wheel counter clockwise approximately ½ turn and spray from a distance of 4-6 inches (10-15 cm) as desired. The fluid control works well at about seven turns. Adjust the air pressure at the line to 25 psi (0.17 MPa) for a narrow fan pattern and up to 40 psi (0.28 MPa) for a wider spray pattern. Adjust hand-wheel as desired.
2. For common fl oor seams, turn the airfl ow handwheel counterclockwise approximately ¼ turn and spray from a distance of ½-1 inch (1.3-2.5 cm). Adjust air pressure at the line to 40 psi (0.28 MPa) and set the fluid control knob to about seven turns. Adjust hand-wheel as desired.

1. Turn air control wheel to closed position when done spraying.
2. Store partially used cartridge inside gun to ensure airtight seal. This prevents sealer from curing in fluid tube of gun. If storage time is more than two weeks, remove the cartridge and clean the gun.
3. Simple maintenance consisting of cleaning spray tip, spray nozzle and gun barrel with mineral spirits is usually all that is required.

1. The sprayable seam sealers should be applied to fully cured primed or painted metal.
2. LORD Fusor 804 and Fusor 805 products are paintable immediately or up to four days after application.

1. Do not leave the gun open/apart between uses unless the gun's fl uid tube and spray nozzle are completely clean. A clogged fl uid tube is diffi cult to clean.
2. Do not spray at high air pressure levels, as simple textured areas are hard to control. Air pressures between 25-40 psi (0.17-0.28 MPa) work best. In addition, high pressures can increase spitting/popping during application.
3. Do not drill a hole in the bottom of the cartridge before using. Gun instructions step 4.2.1 states to "drill" the cartridge plunger before use, which actually means to "push" the cartridge plunger inwards for proper purging of product.
4. Apply sprayable seam sealer to scuffed, fully cured, primed or painted surfaces only. Do not apply to bare metal.
5. Only apply sealer recoats wet on wet. Cured seam sealer will resist recoats.

LORD Fusor 301 manual dispensing gun can be used with either a 1 to 1 ratio adhesive cartridge or a 2 to 1 ratio adhesive cartridge.

1. Depending on the adhesive cartridge used, make sure the appropriate push pads are installed on the manual dispensing gun, and push pads are properly aligned (arrows on push pads must be pointing towards each other).
2. Remove the retaining nut and plugs from end of cartridge.
3. Insert the cartridge into the manual dispensing gun.

1. Level the plungers by applying pressure to the trigger, making sure an even fl ow of material is coming out of both cartridge openings.
2. Attach a mixing tip and reinstall the retaining nut.
3. Dispense mixer’s length of the adhesive until the product is evenly mixed. If streaking is evident, then the adhesive is not mixing properly.

1. After adhesive is applied to mating surfaces and panels are properly positioned, clamp the panels tight. Glass beads in the adhesive will control the bondline thickness.
2. When bonding sectioning joints with the overlap technique, remove all excess adhesive from the sectioning joint. Finish section joint with fiber-filled body filler, followed by conventional body filler. See Illustration A on LORD Fusor Metal Bonding Adhesives Technical Tip Sheet.
3. When bonding sectioning joints with a backer plate, see Illustration B on LORD Fusor Metal Bonding Adhesives Technical Tip Sheet.
4. After the adhesive cures, expect the adhesive to be a little "tacky" on the surface. This is a normal property of the adhesive.