AP101™ Primer-Bonding Agent – Mixing & Application Instructions

Surface adhesion standards and correct application methods for SPEEDLINER PRO™ coatings.

Product Classification

AP101™ is a 1K (one-component), single-pack primer/bonding agent. It is supplied as a ready-to-use product and requires no pre-mixing prior to application.

Tinting for Visual Reference (Optional)

  • The primer may be tinted very lightly using black or grey pigment to provide a visual guide when applying to light-coloured surfaces
  • Tinting should be minimal and used for reference only – it does not change the chemical properties

Primer Quantity Guidance

  • Pickup Truck / LandRover Load Bed (4 – 5 ft): approx. 300 – 400 ml (light mist coat only)
  • Panel Vans (bare plywood areas): 300 – 400 ml for medium load bed + slightly more for fresh plywood
  • Household Paint Comparison: contains only a small amount more solvent than typical home paints

Approved Application Methods

AP101™ can be applied using the following equipment and techniques:

  • Automotive spray gun (Cup or HVLP type)
  • Nozzle/jet size: 1.4 – 1.6 mm
  • Can also be applied by hand using a brush or roller for controlled surface coating

Application Standards by Substrate Type

  • Sanded & painted substrates (including GRP/fibreglass): Apply a light/mist coat only
  • Fresh, bare plywood (e.g., panel van floors or load areas): Apply a semi-wet, even coat
  • Do not overload the primer – it should coat evenly without runs or sags

If Primer Runs or Sags

  • Smooth out immediately using a brush
  • Allow the affected area to dry for longer than the standard flash time before coating
  • Never leave excess primer unsmoothed – this will delay curing and may affect adhesion

Top-Coating Window

  • You may begin coating with SPEEDLINER PRO™ within 20 – 30 minutes
  • The primer is ready for coating once tackiness is gone and you can walk on the surface while wearing overshoe protectors
  • Do not wait longer than 2 hours before coating
  • If more than 2 hours passes, apply a fresh light/mist re-coat of AP101™ before spraying the liner

Important Safety Instructions

  • DO NOT kneel on primed floors during curing stages
  • DO NOT mask primer bays unless those areas will remain uncoated
  • Never apply bulk coats for strength testing – mist coats represent real-world performance
  • Fast-cure plural systems are not related to AP101™ and should not be referenced for adhesion comparison
  • Use only in suitable facilities with appropriate respiratory PPE and ventilation

Etch Primer Requirement for Metals

SPEEDLINER PRO™ Etch Primer should be applied on all bare metals before AP101™, including:

  • Aluminium
  • Galvanized Steel
  • Other uncoated/bare metals

Technical Support

For primer compatibility queries, plastic-specific primers, or adhesion troubleshooting, contact SPEEDLINER PRO™ Technical Support.