Build It | Postfix Concrete | Pennine | 20kg | Quick and Easy | Supplied in Waterproof Plastic Bags

• We provide competitive pricing and nationwide shipping.
• Call us: 01376 503869

Postmix is specially designed and formulated to make fixing posts quick and easy. The factory blended, high quality concrete is the ideal solution for all post erecting applications.

Postmix is specifically designed for securing fence posts (concrete, timber, metal and plastic), gates, washing line poles, rotary washing lines, fence support posts, bird tables / feeders, children’s play equipment, etc.

TYPICAL PERFORMANCE

Initial set time: 5-10 minutes depending on conditions. Refer to reverse of product packaging for instructions on use. 

Typical compressive strength at 28 days is more than 20N/mm2.

PACKAGING & STORAGE

Please see Technical Data and Material Safety Data Sheet (Data sheets and downloads) for detailed storage instructions. 

See details below for the approximate number of bags required per post and hole size.

• 2" Round Post (50mm Diameter)
  • 6" (150mm) x 12" (300mm) - 0.5 bag
  • 6" (150mm) x 18" (450mm) - 0.5 bag
  • 6" (150mm) x 24" (600mm) - 0.75 bag
  • 8" (200mm) x 12" (300mm) - 0.75 bag
  • 8" (200mm) x 18" (450mm) - 1 bag
  • 8" (200mm) x 24" (600mm) - 1.5 bags
• 3" Square Post (75mm)
  • 8" (200mm) x 18" (450mm) - 0.75 bag
  • 8" (200mm) x 24" (600mm) - 1 bag
  • 8" (200mm) x 30" (750mm) - 1.25 bags
  • 12" (300mm) x 18" (450mm) - 2.25 bags
  • 12" (300mm) x 24" (600mm) - 3 bags
  • 12" (300mm) x 30" (750mm) - 3.75 bag
• 4" Square Post (100mm)
  • 8" (200mm) x 18" (450mm) - 0.75 bag
  • 8" (200mm) x 24" (600mm) - 0.75 bag
  • 8" (200mm) x 30" (750mm) - 1 bag
  • 12" (300mm) x 18" (450mm) - 2 bags
  • 12" (300mm) x 24" (600mm) - 2.75 bags
  • 12" (300mm) x 30" (750mm) - 3.5 bags