About this product
weber.floor 4665 is recommended for passenger/merchant vessels and offshore installations requiring fire insulation where the material must be non-combustible according to IMO Res .A 754 (18) weber.floor 4665 marine fire is pumpable base screed recommended for ships and oil platforms requiring fire insulating constructions where the material must be non-combustible. The material satisfies the requirements of the authorities and classification societies for A-60 deck covering
Field of application
The material is not suitable as a final subfloor for coverings and should be topped with weber.floor 4660. Ceramic tiles however can be applied directly on weber.floor 4665. The combination of weber.floor 4665/4660 is suitable as a finished floor for most coverings, such as PVC, linoleum, floating timber floor, resin floor, etc.
Technical data
Working instructions
In order to ensure good results ambient temperatures should be between 10 and 25C
Substrate
The sub-base should be fireboard, minimum 50mm thick, 150kg/m3. Alternatively boards of 200 kg/m3 can be used to give a more stable firmer sub-base. Lay the insulation boards with staggered joints. All the joints in the insulatoin material and to the adjoining structures must be sealed/taped carefully. Glue the mats to the sub-base. Reinforcement netting 100mm wide, grade 3mm, should be attached and netting laid with 50mm overlap carefully fastened.
Mixing
weber.floor 4665 is mixed with 4.3 litres of clean water per 25 kg bag (approx. 17%). The material should be applied using a mixer approved by Weber. It is also possible to hand mix the material using a powerful drill and paddle. The material should be mixed for a minimum of 2 minutes, until the mix attains a lump free consistency. When pumping, check water content with flow tests. Flow rate should be checked continuosly by the flow ring. Check also that the material is correctly mixed and free from separation.
Application
When weber.floor 4665 is pumped onto the substrate the maximum width of the pumpable area should be about 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 new section is pumped as quickly as possible slightly on top of the previous layer. A wide spatula or spiked roller should be used to assist the self levelling process.
Drying time
The screed can receive foot traffic after a drying time of 6-12 hours at an ambient temperature of +20C. Before applying a top layer the material must be cured. A final covering can usually be applied after 1-3 weeks. (10mm per week)
Storage and Shelf life
Storage time in dry conditions and closed packages is 6 months.
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
