
About this product
weber.floor 4660 marine elastic is a cement based pumpable fibre reinforced levelling material for steel decks. It is supplied as a preblended dry powder designed for application at thicknesses between 2 and 30 mm if hand applied, or 4-30mm if pumped. Normal thickness is between 6-10 mm. weber.floor 4660 meets all fire technical requirements as a subfloor for floor covering in passenger/merchant vessels and offshore installations according to IMO res. A.687 (17)
Field of application
weber.floor 4660 marine elastic is designed as a underlayment screed for use on steel desks as either a bonded or floating screed. weber.floor 4660 is used in marine applications in light traffic areas and should be finished with a floor covering such as PVC, vinyl, linoleum, ceramic tiles, carpets etc. weber.floor 4660 is casein and protein free.
Technical data

Working instructions
Light ventilation in the work area is necessary but windows and openings must be closed sufficiently to avoid draughts during and after application. Indoor and floor temperature must exceed +10C during and after application and for one week after that. The relative humidity of the ambient air must not exceed 70% to allow efficient drying of the primer.
Substrate
weber.floor 4660 is designed for levelling of steel decks which have been treated with an anti-corrosion coating. weber.floor 4660 may be used as a floating floor when special glass fibre mesh is incorporated into the screed.(Please contact Weber's Technical Department for full details). When Weber's special glass fibre mesh is used, the minimum layer thickness of a floating floor is 20mm.
Preparation and priming
The substrate should be clean, free from dust, grease and other impurities that might prevent adhesion. weber.floor 4716 primer should be applied to the prepared surface using a soft brush or a primer pump, avoiding ponding, and allowed to become touch dry (3-4 hours under good conditions or over night dependant upon conditions). After application and whilst the primer is still fresh, it should be lightly brushed to ensure a complete uniform film has been applied. The function of the primer is to improve adhesion to the substrate.
Mixing
weber.floor 4660 should be applied using a mixer pump approved by maxit. The material is mixed with 17% water, which corresponds to 4.3 litres per 25Kg bag. Do not use excessive water. While mixing, the water content should be checked continuously by the flow ring test. Ensure that the material is correctly mixed and free from separation. It is important to add the stipulated amount of water as excess water will reduce strength, increase shrinkage and encourage segregation. Conversely reduced water content increases viscosity. The temperature of the mix should ideally be between +15C and + 20C.For hand application, mix the material thoroughly for 1-2 minutes using a powerful mixer tool
Application
The maximum width of the pumpable area varies from 6-8 metres depending on the pump capacity and application thickness. Wider areas can be temporarily divided with stop-ends. Pumping is carried out in sections so that a new section is pumped as quickly as possible in order to maintain a wet edge. A wide spatula or spiked roller should be used to assist the self levelling process.
Overlay
weber.floor 4660 marine elastic must be covered with a floor covering such as PVC, vinyl, linoleum, ceramic tiles, carpets etc. The underlayment must not be covered or used without a floor finish.
Drying time
Foot traffic 1-3 hours
Final covering 1-3 days
Storage and Shelf life
Storage time in dry conditions and closed packages is 6 months.
Environmental Advice
Low alkalinity
Recyclable raw materials
Low emissions
Casein free
Health and Safety
Hazardous – contains cement, which is alkaline when wet and can cause skin irritation. Use eye protection, gloves and barrier cream and avoid prolonged skin contact. Avoid inhalation of dust.Wash skin contamination away with warm, soapy water. Remove splashes to the eyes by prolonged irrigation and consult a doctor. Do not ingest. Refer to Health and Safety Data Sheet.
Technical services
Weber's Customer Services Department has a team of experienced advisors available to provide on-site advice both at the specification stage and during application. Detailed specifications can be provided for specific projects or more general works. Site visits and on-site demonstrations can be arranged on request.
Technical helpline
Tel: (01525) 722110
Fax: (01525) 718988
Sales Contact
Weber products are distributed throughout the UK through selected stockists and distributors. For UK sales enquiries and overseas projects, contact Weber's Sales office.
Sales office
Tel: 08703 330070 (Press 1 for Sales) Fax: (01525) 718988







