SEMI-RIGID PU JOINT FILLER (FLOW & GUN GRADE)

Urochem 280 is a twin pack pourable or gunable PU compound designed to be used as a joint filler in floors where movement is limited. Due to its good compressive properties, it helps reinforce the joint arises against the effect of wheeled traffic. It exhibits good resistance to cleaning solutions, mild acids, alkalis, and oils.

• The joint depth should be a minimum of 50mm.
• The depth of the joint should be controlled by using a compacted layer of dry 5mm silica sand and the joint is then filled with the thoroughly blended Urochem 280 to the full depth of the joint by either pouring or gunning using a long barrel gun.
• As a flush finish is required overfill with the compound to create a raised surface Check an hour or so after the original application to ensure that some of the jointing material has not seeped away and top up as required.
• The excess material should be shaved or ground flush the next day.
• Staining of the areas adjacent to the joint can occur and should be allowed for.
• Important – The sealant MUST be supported from below.
• No priming is required

• As reinforcing joint filler for low movement joints in floors designed to handle heavy wheeled traffic.
• In new floors, installation should only commence after a minimum of 28 days of curing.

NB. before shrinkage of the concrete has ceased or temperatures have stabilised, the use of a temporary sealant is highly recommended..

Contains organic solvents which are flammable. Do not use in confined spaces. Ensure adequate ventilation and the absence of any ignition source. Wear protective clothing. In case of eye contact wash well with water and obtain medical advice.

Please refer to product MSDS for further information.

• All surfaces must be clean, sound, and dry. Remove all loose material and ensure that there is no contamination from oils, greases, curing compounds etc.
• Blast clean steel surfaces to at least SA 2.5 and apply a coat of a suitable anti-corrosive primer. Joint faces must be parallel.

• Urochem 280 is supplied in a two-part kit, base, and activator in separate tins.
• Transfer the total quantity of activator into the base component and mix thoroughly using a slow speed electric drill fitted with a flat blade stirrer.
• Scrape down the sides of the can and the base and remix until the colour is uniform and free from streaks.
• Thorough mixing is essential and should take 5 to 10 minutes

Clean all equipment immediately after use with Urochem 901. Once the sealant has cured, it may only be removed mechanically.

(No allowance made for wastage)