5 Litre ROOF Bitumen Primer

Product Information

There is no need to choose between the two materials as they complement each other. After priming the base, you can apply a mastic for gluing the reinforcing glass fabric. Varieties of bituminous primers Bituminous primer is different from mastic properties, purpose of application and composition... Materials are intended for different jobs. The primer holds the top layer of the base together, protects against moisture, deterioration, and ensures effective adhesion. The mastic is used as a waterproofing layer and an adhesive layer for laying reinforcing mesh and finishing roofing. If the construction or finishing conditions do not require the use of a highly specialized composition, a universal version of a bituminous liquid is used. The primer is ideal for low pitched roofs, road construction and underground applications.

Cromar Bitumen Primer Black 5L - Builder Depot Cromar Bitumen Primer Black 5L - Builder Depot

If the primer is used for gluing layers of material, wait for the first layer to dry for 4 - 5 hours, then apply a layer of glue. Difficulty removing accidental surface splashes Difference from mastic Mastic is more viscous than primer By definition, a primer comes first and serves as a base for what should follow — whether it’s attending the primary grades at the beginning of school, priming an engine to start or using a primer coat applied prior to painting a wall. Similarly in commercial roofing, a primer is used as the first step in the application of a roof coating or membrane to aid in the proper bonding of the product to the surface. There are special varieties for different materials, the composition is selected taking into account the adhesion of the upper layers of the surfaces to be joined. Roofingthe top layer of the treated surface is reinforced base for the subsequent laying of the finishing or intermediate layer;

CROMAR BUILDING PRODUCTS Technical Data Sheets - CROMAR BUILDING PRODUCTS

Petroleum bitumen melt at temperatures above 75 - 90 ° C, therefore, they are confidently used in areas with hot summers. Bitumen is a mixture of air-blown tar with the residue of viscous crude asphalt oil or heavy distillate. All surfaces must be structurally sound, clean, dry and free from surface contaminants such as grease, rust and dirt. If necessary, remove any organic growth i.e. moss or lichen, with a fungicidal wash. On bare metal a rust inhibiting product, such as red oxide or zinc phosphate should be applied and allowed to harden.Bitumen Primer should be applied by brush ensuring an even coat, or applied evenly by airless spray This specification covers asphaltic primer suitable for use with asphalt in roofing, dampproofing, and waterproofing below or above ground level, for application to concrete, masonry, metal, and asphalt surfaces. There are low-quality products on the construction market that are produced with deviations from technology. As a result, the primer dries for a long time or does not set at all. The surface remains damp, unsuitable for adhering to the following materials. Bitumen primer is designed to seal and prime surfaces such as concrete, masonry and timber, before applying bitumen roofing. It can also be used to prepare small porous surfaces before remedial roof treatment. We cannot offer a delivery day or time within this service. You can upgrade your delivery service from our menu of delivery services including next day, next day am.

Bitumen Primer - CROMAR BUILDING PRODUCTS Bitumen Primer - CROMAR BUILDING PRODUCTS

mastics are distinguished by higher viscosity, fillers in the form of chalk, mineral chips, and other particles are included in the composition; A layer of primer on the surface facilitates roof waterproofing work. Self-adhesive and weld-on coatings are better glued to the processed plane. Structure The primer contains no toxic substances

All surfaces must be free from oil, dirt, dust and loose debris. On metal surfaces all loose rust should be removed with a wire brush and any advanced signs of corrosion should be treated with a rust inhibitor. Surfaces should be dry before application although Bitumen Primer will adhere to damp surfaces On metal surfaces, special store-bought products are used to remove bitumen. The drugs are sold in bottles or in the form of sprays, they do not leave marks. Bitumen primer manufacturers