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Carlack Glass Finish

by Carlack
Original Price £15.00
Current Price £7.50

We Say

Carlack Glass Finish is an advanced polymer-based sealant that lays down a film of hydrophobic additives that cure to form a fully transparent barrier layer that repels rain, sleet and snow upon contact. The sealant works with airflow over the car to rapidly disperse water droplets at speeds in excess of 30 mph, resulting in greatly improved visibility and driving comfort, even in extreme weather conditions. Indeed, independent academic studies have shown that such sealants enable drivers to recognise objects up to one second earlier in wet-weather conditions. At 60 mph, this one second advantage can reduce stopping distances by up to 30 m, making driving safer for everyone on the road. Provided that the treated surfaces are properly prepared in advance, each application of Carlack Glass Finish will last for between three to six months before needing to be reapplied.

Key Features

Beading9/10(Compared To Others)
Durability3 Months +(Average Value)
Runoff Threshold35 mph(When Glass Is Clean)


Carlack Glass Finish is a polymer-based sealant that forms a hydrophobic (water-hating) barrier layer on automotive glass. It achieves this by laying down reactive compounds and additives that cure to form a fully transparent micro-film that repels rain, sleet and snow upon contact. As a result, rain drops and road spray simply bead up and roll off of treated surfaces, or are blown off by airflow when driving speeds rise above 30 mph. Moreover, this beading tends to pick up and carry away fresh dirt and grime, meaning that the sealed glass is partially self-cleaning. Carlack Glass Finish therefore significantly improves visibility and driving comfort in poor weather, and greatly reduces the need to use windscreen wipers. Furthermore, in the summer months bug splatter washes off far more easily, and in freezing conditions de-icing is more quickly achieved.


More Information
Adds Protection Yes
Application Method By hand only
Chemical Basis Polymer-based
Dangerous Goods Y
Durability 3 months +
Emits Strong Fumes Yes
Layerable No
Runoff Threshold 35 mph
Safe For Privacy Glass Yes
Safe For Window Tints No
Size 250 ml

How To Use

Carlack Glass Finish should be applied in a warm, dry, well-ventilated space out of direct sunlight. To protect your skin, we recommend wearing PB Nitrile Gloves during the application process. To achieve the quoted durability and performance benefits, it is necessary to properly clean the surfaces to be treated in advance. To do this, use Carlack Glass Compound to initially cut away any stubbornly bonded surface contaminants, and then use Carlack Glass Clear to remove any lingering grease and grime (put simply, the cleaner the glass is before the sealant is applied, the longer it will last). To apply the sealant, shake the bottle vigorously first to ensure that the contents are fully mixed. Next, lightly wet a Nanolex Cotton Applicator Pad with a few drops of product and work them in to the glass in a circular fashion, using firm pressure. The resulting film should then be left to dry for a minimum of 10 minutes before being buffed off with a PB Utility Towel. If you find the residue difficult to remove, mist the treated surfaces with deionised or distilled water and continue buffing until any haziness disappears.