Other products, such as asphalt/coal tar blends, and material containing ceramics are also available, so sealcoating contractors have a variety of options to choose from if the coal tar they ...

The first step in laying a gravel roof is applying the tar or asphalt. Then come multiple layers of roofing felt, followed by bitumen — a crude oil byproduct used for waterproofing and binding ...

He said the government has decided to lay 'BT (Bituminous Tar) road' from all the 'thandas' to the respective mandal headquarters, either a village was already a Gram Panchayat or it got the ...