Welcome to GemCo Ltd, you can login or create an account.

Coronavirus Lockdown
GemCo will operate under Level 2 guidelines on Thursday 14th May.
We ask visitors to keep 1 metre apart, use the hand sanitiser provided and supply name and phone number for contact tracing.

GemSol Hand Sanitizer
GemSol Hand Sanitizer Details

Clear water based permanent anti-graffiti coating

Price Incl. GST
Select Size: 

Qty:  Buy Now
   - OR -   
Clear water based permanent anti-graffiti coating

GEMCOAT™ AG is a single pack, clear, water based anti-graffiti coating. GEMCOAT™ AG has been developed in New Zealand for New Zealand conditions. It has the following key characteristics: Excellent anti-graffiti properties allowing repeated graffiti removals. It is environmentally & user friendly. It has been formulated to have the following properties: It can be applied over concrete, stone, & many other surfaces – consult GemCo. It can also be applied over most coatings – consult GemCo. Suitable areas of use – buildings, fences, median barriers, bridges, signage, tanks etc. Graffiti like spray enamels & felt pen can be removed from GEMCOAT™ AG. GEMSTRIP GA graffiti remover is used to remove graffiti

Physical properties

  • Appearance: white liquid;
  • Odour: low odour
  • Flammability: non flammable
  • Pack sizes by volume: 5L, 20L
  • Coverage: 5-10 sq m/litre theoretical – will vary in practice
  • Re-coat time: typically 10 minutes – 1 hour depending on climatic conditions
  • Dry time @ 25 ° C: Touch Dry 30 min, Dry to handle 1 hour, Full cure – 7 days 


  • Concrete and cement must be cured 28 days minimum, then ground or acid washed to remove any laitance (alkaline salts from curing) Surfaces to be clean, dry, & free of contaminants before applying.


  • GEMCOAT™ AG can be applied by brush, roller, or portable pump spray
  • Rolling using a 5 -10mm good quality fleece roller is preferred method.
  • Start at top of walls using upward strokes then work down
  • A minimum of 2 coats will be required - 3 coats is recommended for best longevity
  • Re-coat when tack free : typically 10 minutes – 1 hour depending on climatic conditions
  • Do not apply below 10 ˚ C
  • Do not apply in rain
  • Do not apply if rain is expected
  • Clean up with water

Handling Precautions

  • Avoid contact with eyes and skin.
  • Do not ingest.
  • Use with adequate ventilation.
  • Use a respirator with an organic cartridge when applying.
  • Protective clothing, eye protection, and gloves must be worn.
  • Keep away from children.