Larcem 25 can be mixed with cement as a bonding grout for screeds and renders. The improvements allow the production of high strength screeds, thin section screeds, patching/repair mortars and waterproof mortars.

• Improves flexural strength
• Improves tensile strength
• Improves abrasion resistance
• Improves chemical resistance
• Reduces shrinkage
• Reduces water permeability
• Non-corrosive to steel

Packaging:
5L and 25L packs

Coverage:
As Bonding Grout: when diluted 1:2 with OPC, sufficient grout will be produced to cover ~4m2
As Admixture: depending on application, between 40 – 100 L/m3

The post SBR Bond first appeared on Caltra Building Products.

PVA Bond will bond most building materials provided one surface is porous. PVA Bond seals porous surfaces and helps prevent dusting on concrete. PVA Bond can be used with cementitious mixes to make patch repairs.

• Improves strength
• Improves workability
• Universal primer and bonding agent
• Seals concrete, brick and timber

Packaging:
0.5L, 1L, 2.5L, 5L and 25L packs

Coverage:

The post PVA Bond first appeared on Caltra Building Products.

It inhibits the passage of liquid water through the capillary and pore network in cementitious materials, but does not form a vapour barrier thus allowing the structure to breathe. Prufplast is non-retarding, chloride-free and equally compatible with all cements. Use in render base coats also reduces the suction to allow easier application of following render coats.

• Combined waterproofer & plasticiser
• Ideal for use in external renders
• Vapour permeable – allows structure to ‘breathe’

Packaging:
5L and 25L packs

Coverage:

The post Prufplast first appeared on Caltra Building Products.

By increasing the water repellency but maintaining the vapour permeability of a mix, there is a lower water absorption, lower risk of efflorescence and staining and a higher durability. Use of Powder Waterprooofer in render base coats also reduces the suction to allow easier application of following render coats

• Permeability and absorption reduced
• Vapour permeable – allows structure to ‘breathe’
• Helps prevent efflorescence
• Easy to use

Packaging:
1kg plastic bags

Coverage:
1kg per 50kg cement

The post Powder Waterproofer first appeared on Caltra Building Products.

It is manufactured from a unique blend of surfactants, which ensures consistent performance of mortars. Powdered Mortar Plasticiser improves the workability of mortar for masonry, brickwork and sand/cement rendering. In addition, it increases the resistance of the mortar to frost by entraining air.

• Easily handled
• Replaces lime
• Increases frost protection
• Reduces shrinkage and crazing
• Chloride-free
• BS EN 934

Packaging:
25kg plastic tubs

Coverage:

The post Powder Mortar Plasticiser first appeared on Caltra Building Products.

It inhibits the passage of liquid water through the capillary and pore network in cementitious materials, but does not form a vapour barrier thus allowing the structure to breathe. Pink Waterproofer is non-retarding, chloride-free and equally compatible with all cements. Pink Waterproofer is not suitable for use in areas where there is hydrostatic pressure.

• Integral waterproofer
• Ideal for use in external renders
• Vapour permeable – allows structure to ‘breathe’

Packaging:
5L and 25L packs

Coverage:

The post Pink Waterproofer first appeared on Caltra Building Products.

It is manufactured from a blend of specially selected synthetic surfactants. Mortar Plasticiser improves the workability of mortar for masonry, brickwork and sand/cement rendering without the need for lime. In addition, increases the resistance of the mortar to frost by entraining air.

• BS EN 934
• Reduces the water requirement
• Replaces lime
• Increases frost protection
• Reduces shrinkage and crazing
• Chloride-free

Packaging:
5L, 25L and 200L

Coverage:
Typically 0.5 L per 100 kg cement

The post Mortar Plasticiser first appeared on Caltra Building Products.

It inhibits the passage of liquid water through the capillary and pore network in cementitious materials, but does not form a vapour barrier thus allowing the structure to breathe. Caltra Integral Waterproofer is non-retarding, chloride-free and equally compatible with all cements. Caltra Integral Waterproofer can be used to waterproof screeds, renders and concrete, which when treated will resist hydrostatic pressure. It is also suitable for use in render systems used to tank basements or to line water-retaining structures.

• Colourless, non-staining and non-toxic
• Non-flammable
• Ideal for use in areas of poor ventilation
• Light traffic after 24 hours
• Economical and easily applied
• Can be over-coated
• Approx. 45% efficiency

Packaging:
25L and 200L packs

Coverage:
Approx. 4-5m2/l per coat

The post Integral Waterproofer first appeared on Caltra Building Products.

It is a highly concentrated calcium chloride based liquid admixture formulated to accelerate the setting time of cement based mixes in cold weather and increase the rate of hardening of concrete and other cement mixes.

• Accelerates setting times
• Increases early strengths
• Ideal in cold weather conditions
• Helps prevent frost damage in newly placed materials
• Chloride-based
• Meets BS EN 934-2 Table 6

Packaging:
5L, 25L, 200L or Bulk

Coverage:
0.25 – 2.5L per 25kg cement (1-10%)

The post Rapid Hardener & Frostproofer first appeared on Caltra Building Products.

It is manufactured from a blend of specially selected synthetic surfactants. Extra Strength Mortar Plasticiser improves the workability of mortar for masonry, brickwork and sand/cement rendering. In addition, it increases the resistance of the mortar to frost by entraining air.

• Tested to BS EN 934
• Reducing the water requirement
• Replaces lime
• Increases frost protection
• Reduces shrinkage and crazing
• Chloride free

Packaging:
5L, 25L and 200L

Coverage:
0.3 – 0.5 L per 100 kg cement

The post Extra Strength Mortar Plasticiser first appeared on Caltra Building Products.