Welcome to the Spray Series!

Over the coming weeks and months, we will be introducing to you all our different sprays patterns and helpful hints and tips on using them. This week it is Fine Mist Spray.

What is a Fine Mist Spray?

Fine Mist spray adhesives are released from the container as a fine mist, which creates a light and consistent droplet pattern on the surface it is sprayed upon.

Useful steps when using this spray adhesive.

Step 1.

Make sure that surfaces are clean, dry and free from dirt, dust, oil, loose paint, wax or grease, etc.

Step 2.

Hold spray gun at a constant distance of between 8” - 15” (20 - 38cm) from the surface, allowing the adhesive to droplet across the surface with approximately 50 to 70% overlap to successive passes for thin laminates to reduce risk of telegraphing (note - even coat weight must be achieved).

Step 3.

Maintain a constant speed of application during spraying, applying a consistent and thorough coating without allowing the adhesive to puddle or heavily ‘wet’ the surface. Maximum bond strength is achieved with coverage of between 80% to 100%, and a recommended minimum coat weight of 20 dry grams/m2.

Step 4.

Maximum adhesion will be obtained by spraying mating faces at 90° to each other, i.e. one face vertically, the other face horizontally. Double coating perimeter of face and edges is recommended, including areas around subsequent cutting positions.

Coverage

Below are three images of coverage when using the spray adhesive and how to spot when you are using it correctly and when it's been put on too heavily or too lightly.

Correct Application 20 dry gms/sqm

Coverage too heavy

Coverage too light

Top Tips when using adhesives

• If the spray tip clogs, unscrew the spray tip from the gun and clean with a solvent such as lacquer thinner or acetone. Do not use a pin on the spray tip.

• We recommend using clear rather than coloured adhesive when bonding any thin or absorbent surfaces, as the dye is designed to seep into and colour anything with which it comes in contact and may over time contaminate the substrate.

• Always check what type of spray pattern your adhesive has before spraying.

• It is imperative that you identify the type of spray pattern that will be released from the canister; failure to identify this can lead to improper applications and undesired results. To confirm the product’s spray pattern, simply check the label.

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