Our Product

77 CONSTRUCTION CHEMICAL

77 Construction Chemical (CH-77) based two-component bonded anchoring system for stress-free fixing into solid and hollow substrates. CH-77 resin produces higher bond strength than polyester and is suitable for more demanding applications. We offer CH-77 in a range of cartridge sizes from 150ml to 850ml.

Shelf Life

Cartridges should be stored in their original packaging, the correct way up, in cool conditions (+5°C to +25°C) out of direct sunlight. When stored correctly, the product’s shelf life will be 12 months from the date of manufacture.

Health & Safety

For health and safety information please refer to the relevant Safety Data Sheet.

Base Material

•    Concrete

•    Solid & hollow masonry

•    Hard natural stone

•    Solid rock

•    Voided stone or rock

Features

•    Anchors may be placed close to free edges

•    Suitable for dry, wet & flooded holes without loss of performance

•    Reduced drilling diameters i.e. M20 only requires a 22mm hole and M24 requires only a 26mm hole making it an economical injection system

•    Variable embedment depths

•    Available in side by side Cartridge (350ml)

•    Ratio of 10:1

Accessories

•    Applicators

•    Mixing nozzles

•    Cleaning blow pump

•    Cleaning brushes

•    High flow mixing nozzles

•    Extension tubes

•    Resin stoppers

•    Plastic sleeves

Uses/Applications

•    Ventilated fagades

•    Catenary Support

•    Canopies

•    Boilers

•    Bicycle racks

•    Hand rails

•    Masonry supports

•    Signs

•    Safety barriers

•    Balcony fences

•    Racking

•    Machinery

•    Satellite dishes

Approvals & Tests

•    ETAG 001 Part 5 Option 7 for threaded bars (M8-M24) in galvanized steel 5.8-8.8 & 10.9 and Stainless Steel A4-70; A4-80 & HCR (1.4529) in C20/25 to C50/60 uncracked concrete.

•    A+ classification according to compulsory French VOC emissions regulation.

•    Tested according to LEED v4.1 beta July 2019.

Vinylester (FP-77) Working & Loading Times

Resin cartridge Temperature °C TWork

minutes

 Base Material Temperature °C T Load minutes
+5 to +10 12 +5 to +10 120
+10 to +20 6 +10 to +20 80
+20 to +25 4 +20 to +25 40
+25 to +30 3 +25 to +30 30
+30 to +35 2 +30 to +35 20
+35 to +40 1.5 +35 to +40 15
+40 1.5 +40 10
Note: T Work is the typical time to gel at the highest temperature in the range.

Physical Properties

Property Unit Value Test Standard
Density g/cm3 1.7 ASTM D 1875 @ +20°C
Compressive Strength 4 hours N/mm2 60 BS6319
24 hours 70
7 days 75
Compressive E-Modulus 7 days GN/m2 3.13 ASTM D 695 M @ +20°C
Tensile Strength 24 hours N/mm2 11 ASTM D 638 @ +20°C
7 days 13
Tensile Strength

Elongation at Break

 24 hours % 0.09 ASTM D 638 @ +20°C
7 days 0.12
Flexural Strength 7 days N/mm2 24 ASTM D 790 @ +20°C