moving of material will also have to be agreed to with the Hospital Management. The tenderer must allow for this in his prices since no additional claim will be entertained in this regard TENDERS SHOULD BE BASED ON THE FOLLOWING SPECIFICATIONS SITE APPLICATION Repair work Repairs to cracks 0.2mm to 2mm Rake out with a scraped blade Remove dust and debris Fill with pure acrylic, paintable, flexible crack filler Cracks over 2mm Open out with a carborundum disk into a V minimum 3mm wide Remove dust and debris Wet the crack and fill with damp 1:4 cement/sand mortar properly compacted into the cracks Repairs to Mortar Joints Scrape out unsound mortar solidly with 1:3 cement/sand mortar properly compacted into the joints Repairs to Painted Wall Surface Coating Remove loose paint with a sharp paint a scraper or hand-held pneumatic engraving tools fitted with flat chisel heads Feather edges of tightly bonded paint with a rough to medium grit paper Built up paint covering flush with general surface area Preparation Generally Materials used in preparation to be types recommended by their manufacturers and the coating manufacturer for the situation and surfaces being prepared Apply in strict accordance with the manufacturers specification Apply oil based stoppers/fillers after priming. Apply water based stoppers/fillers before priming unless recommended otherwise by manufacturer. Patch prime water based stoppers/fillers when applied after priming Ensure that doors and opening windows, etc, are as necessary before coating. Prime any “eased” resulting bare areas Plastered surfaces and fibre cement boards to be washed down and allowed to dry completely Unfinished concrete surfaces clean with 1:4 solution of spirit of salts: water All floors where painting is to be carried out to be swept clean, walls dusted down and unpainted surfaces protected Efflorescence Remove surface salts and other loose material with a stiff brush or coarse dry cloth for 48 hours and repeat process if further efflorescence occurs Sand glossy surfaces to provide a key for finish Ironmongery Remove from surfaces to be coated and re-fit on completion. Do not remove hinges unless instructed to do so Previously Uncoated Timber Ensure that large and loose knots are removed and made good with sound timber of the same species. Sand down flush Ensure that surfaces are clean and remove all oil, grease and excessive natural oils with suitable solvents Sand to a smooth, even finish with arises rounded or eased Remove resinous bleeding by heat, two coats of knotting to resinous areas and all knots and allow to dry
moving of material will also have to be agreed to with the Hospital Management. The tenderer must allow for this in his prices since no additional claim will be entertained in this regard TENDERS SHOULD BE BASED ON THE FOLLOWING SPECIFICATIONS SITE APPLICATION Repair work Repairs to cracks 0.2mm to 2mm Rake out with a scraped blade Remove dust and debris Fill with pure acrylic, paintable, flexible crack filler Cracks over 2mm Open out with a carborundum disk into a V minimum 3mm wide Remove dust and debris Wet the crack and fill with damp 1:4 cement/sand mortar properly compacted into the cracks Repairs to Mortar Joints Scrape out unsound mortar solidly with 1:3 cement/sand mortar properly compacted into the joints Repairs to Painted Wall Surface Coating Remove loose paint with a sharp paint a scraper or hand-held pneumatic engraving tools fitted with flat chisel heads Feather edges of tightly bonded paint with a rough to medium grit paper Built up paint covering flush with general surface area Preparation Generally Materials used in preparation to be types recommended by their manufacturers and the coating manufacturer for the situation and surfaces being prepared Apply in strict accordance with the manufacturers specification Apply oil based stoppers/fillers after priming. Apply water based stoppers/fillers before priming unless recommended otherwise by manufacturer. Patch prime water based stoppers/fillers when applied after priming Ensure that doors and opening windows, etc, are “eased” as necessary before coating. Prime any resulting bare areas Plastered surfaces and fibre cement boards to be washed down and allowed to dry completely Unfinished concrete surfaces clean with 1:4 solution of spirit of salts: water All floors where painting is to be carried out to be swept clean, walls dusted down and unpainted surfaces protected Efflorescence Remove surface salts and other loose material with a stiff brush or coarse dry cloth for 48 hours and repeat process if further efflorescence occurs Sand glossy surfaces to provide a key for finish Ironmongery Remove from surfaces to be coated and re-fit on completion. Do not remove hinges unless instructed to do so Previously Uncoated Timber Ensure that large and loose knots are removed and made good with sound timber of the same species. Sand down flush Ensure that surfaces are clean and remove all oil, grease and excessive natural oils with suitable solvents Sand to a smooth, even finish with arises rounded or eased Remove resinous bleeding by heat, two coats of knotting to resinous areas and all knots and allow to dry