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• Features & Benefits
• Preparation
• Mixing
• Application & Curing
• Technical Data

Features & Benefits

• Easy to apply, excellent application properties
• Easy to spread to provide a smooth and level surface
• Good adhesion to suitably prepared concrete
• Compatible with typical concretes or Weber cementitious hand-placed repair mortars
• Factory pre-blending eliminates onsite mixing errors and variations in quality, availability and grading of local cements and aggregates

Preparation

Webercem Fairing Coat is suitable for use on concrete. It is not suitable for blocks or bricks. All substrates must be sound, free of all contamination including laitance, paint, coatings, oil, grease and dust.

Concrete surfaces must be adequately prepared by use of suitable mechanical means such as grit blasting, high pressure water jetting or needle gunning to produce a lightly textured surface to ensure a good key.

It is not suitable for surfaces contaminated with oil or grease. New concrete must be fully cured for a least 14 days. Do not use a permanent curing membrane on the fresh concrete.

Defects such as honeycombing, leaks, pinholes, cracks should be treated appropriately prior to the application of Webercem Fairing Coat.

Mixing

Mix Webercem Fairing Coat in a forced-action mixer or in a clean bucket using a paddle and a slow speed drill at a speed not exceeding 400rpm.

Mix for at least 2 minutes to a smooth and homogeneous paste consistency. For normal levelling applications use 3.1 to 3.3 litres of water per 20kg bag.

Usable time after mixing is between 45 minutes and 1 hour.

Application & Curing

Ensure all pores, surface voids are filled first before applying Webercem Fairing Coat as a levelling mortar.

Apply with a steel float to a thickness of about 2-3mm pressing well into the damp substrate. If a thicker coat is needed to hide deeper surface imperfections, apply the second coat when the mortar has hardened sufficiently to support it.

Minimum thickness of application: 2-3mm.

Maximum thickness of application: 5mm, small areas deeper than 5mm can be dubbed out with webercem fairing coat allowed to dry prior to the final 5mm levelling coat being applied.

To finish rub up with a damp sponge to produce a level surface suitable for over-coating.

Curing:

Normal concrete curing methods are recommended. Do not use a curing agent when applying a coating unless it can be proven that the subsequent bond will be unimpaired.

webercem fairing coat can be over-coated with an anti-carbonation coating, or high performance silicone enhanced paint.

Use of coatings over Webercem Fairing Coat are subject to relevant fire testing and regulations, please see individual product data sheets for more information.

• Over-coating times are dependent on weather conditions
• The temperature range of application is between +5˚C and +30˚C
• Do not apply on frozen surfaces or when frost is expected within 24 hours
• Do not apply in direct sunlight or on hot substrates
• Do not use solvent based coatings with this product
• When applying in confined or close spaces, cure for 3 days then ensure sufficient ventilation to prevent condensation
• Note: Times quoted need to be extended at lower temperatures and reduced at higher temperatures

Technical Data

Water addition: 3.1-3.3L

Pot Life: 45 minutes - 1 hour @ 20°C

All tests carried out at max. water addition at 20°C unless otherwise stated.