3M Primer 94

Q) How much area gets will a 236ml tin of Primer 94 cover ?

A) A 236 ml tin of Primer 94 covers approximately 3.46 square metres of total surface area.

If you are using it in a linear direction (such as painting a strip to match the width of a roll of tape), the total length in metres will depend entirely on how wide your application stripe is:Linear Coverage Estimates by Stripe Width;

• 12 mm wide tape path: ~288 linear metres
• 25 mm (1 inch) wide tape path: ~138 linear metres
• 50 mm (2 inches) wide tape path: ~69 linear metres

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Q) How much will a 3M Primer 94 Ampoule cover ?

A) A standard 0.66 mL single-use ampoule of Primer 94 covers roughly 0.0097 square metres in total area (based on 3M's rated coverage of 14.7 m²/L).

When applied as a thin line for tape or trim, this translates to roughly 8 to 10 linear metres of coverage depending at 12mm wide.

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Q) What is 3M Primer 94 used for?

• Enhances grip for VHB tapes and vehicle wraps on tricky spots like curves, edges, and deep recesses.
• Promotes adhesion on low-surface-energy plastics like polyethylene, polypropylene, ABS, and PET blends.

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Q) How long does it take to dry?

A) Typically dries in 5 minutes at room temperature. It should look dry and feel tack-free or lightly tacky (depending on application specifications) before you apply your tape or film. Do not wait longer than 1 hour to apply the tape.

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What are the best practises for applying Primer 94 ?

• Clean the surface first using a 50/50 mix of isopropyl alcohol and water.
• Shake the primer well.
• Paint a very thin, uniform coat using a brush, swab, or pen applicator. Less is more; avoid pooling or thick layers.

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