Contact Adhesive 30NF • 30H

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Application Equipment

Suggestions (conti

Typical Automatic Spray System

1. Screen, Binks #41-2662

2. 3/4 in. PVC Plastic pipe, approximately 3 ft.

3. Nylon based hose, 3/4 in. ID, Binks #71-284, with

#72-417 hose fittings, approximately 4 ft. long.

4. 3/4 to 1 in. NPT Plastic reducer nipple.

5. Pump 1 in. plastic diaphragm pump with PTFE checks and

diaphragm such as manufactured by Warren Rupp Co.

7. Nylon lined hose, 1/2 in. ID, Binks #71-283, with

#72-1334 fittings.

9. Graco Model 12 (stainless steel) with filter bag

#521-264 or equivalent.

11. Nylon lined hose, 3/4 in. ID, Binks #71-282, with

#72-1328 fittings.

12. Automatic spray gun Binks #95A with stainless

steel fluid tip #65 and #66SD air cap.

Note: Polyethylene tubing may be substituted for

nylon lined hose.

Typical Laminating Line

1. Conveyor: Conveyor should be adjusted to give the required

drying time. For example, a conveyor speed of 10 feet per

minute with a 10-foot long oven will give a drying time of

60 seconds.

2. Reciprocating Spray Machine and Spray Booth.

3. Drying Oven.

4. Lay-Up Area.

5. Nip Rolls.

6. Take Off Table

Start Up, Maintenance and Shut Down for Automatic Spray Lines:

Water-based adhesives differ from solvent based adhesives in two major respects:

1.

Dried water-based adhesive will not dissolve in the wet adhesive.

2.

The presence of water in the system creates the potential for corrosion of or reaction with certain metals, such as copper, brass, steel,

aluminum, etc. As a result, extra care is required to assure proper functioning of spray equipment. The attached schematic of a suggested spray

system, start-up

procedure for this system, and suggested maintenance program, were developed with the properties of 3M water-based adhesives in mind.

Start-Up Procedure for Air Atomizing Spray System with Rupp Pump

1. Connect pump to piping system. Flush lines and pipes with hot, soapy water* to remove possible contaminants before attaching pump or spray

gun. Flush thoroughly with clean water. Blow out excess water. Do not connect fluid line to spray applicator.

2. If pump has not been supplied with air regulator, attach regulator and gauge to air inlet of pump.

3. Close air inlet valve on pump and attach regulator inlet to air supply.

4. Adjust regulator to “0” pressure reading on the gauge.

5. Open air inlet valve all the way and tighten lock nut.

6. Insert suction tube in adhesive so that inlet to tube is at bottom of container.

7. Direct end of fluid hose into a waste container.

8. Start pump by increasing regulated inlet air pressure (approximately 5 psi will be required).

9. Run pump until all traces of air are out of the system and adhesive is flowing in a steady, uninterrupted stream.

10. Shut off pump by reducing inlet air pressure to “0” psi or disconnecting inlet air line from regulator.

11. Immediately connect fluid hose to spray applicator.

12. Turn on pump and manually trigger applicator a few times to purge air from applicator.

13. Set flow rate of spray applicator by increasing or decreasing inlet air pressure to pump (normally 5-30 psi).

14. Adjust atomizing air pressure and fan air to obtain desired spray pattern (normally 10-20 psi).

*Cleaning solution: One pint detergent to five gallons of water. Flush with clean water.