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Fosroc Nitoseal PU12 is a two-part, elastomeric joint sealant based on polyurethane technology. It is supplied in packs containing base compound and curing agent in the correct proportions which, when mixed, cure to form a tough rubber-like material. Adhesion to most commonly used construction materials is excellent.
In special circumstances, such as sealing sea defence works in tidal areas, a special Nitoseal PU12 Accelerator component is available, to be added when mixing to enhance the initial cure rate, so that work can be completed between tides.
Fosroc Nitoseal PU12 is a two-part sealant designed to meet many of the requirements of the water industry in water retaining structures, sewage treatment and sea defence works. It is resistant to the bacteriological conditions associated with sewage treatment and silt accumulations in water storage. The abrasion resistance of Nitoseal PU12 makes it also appropriate for use for sealing movement joints in concrete sea walls subject to tidal scour.
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Features & Benefits
- Resistant to aerobic and anaerobic bacteriological attack
- Excellent adhesion under immersed conditions
- Abrasion resistant
- Separate component for accelerating the initial cure
Uses
- Sludge digestion tanks
- Filtration and aeration tanks
- Culverts
- Raw water reservoirs
- Sea walls
Application Notes
- The use of Fosroc Primer P7 is essential to ensure proper adhesion on porous surfaces
- Allow the primer to dry. The sealant may be applied within the time period 30 minutes to 3 hours. That is after the primer solvent has evaporated but before the film has fully reacted. Any primed surfaces left longer than 3 hours must be re-primed before applying the sealant
- Mix thoroughly using a slow speed drill (300 to 500 rpm) fitted with a Fosroc Sealant Mixing Paddle. Mix for 3 minutes then scrape down the sides and bottom of the tin using a spatula, mix for a further 2 minutes
- Load the mixed Nitoseal PU12 into a Fosroc ‘G’ gun using a Follower Plate. Compact the Nitoseal PU12 into the primed joint. Tool off leaving a smooth finish
- Can be finished by tooling-off smooth using a metal or wooden spatula. A minimum amount of detergent may be used to ease this operation. Remove all masking tapes immediately after tooling. Excessive tooling can cause surface drag, this should be avoided
- Clean equipment immediately after use with Fosroc Equipment Cleaner
- Coverage dependent on joint size. See product data sheet
Data sheet
- Manufacturer
- Fosroc
- For Use By
- Professional Use
- Application Method
- Gun
- Single, Two or Three Pack
- Two-Pack
- Pack Size
- 4 x 2.0 litre units
- Coverage
- Dependent on joint size. See product data sheet.
- Max. Application Temperature
- 50°C
- Min. Application Temperature
- 5°C
- Density
- 1.44 kg/litre
- Solids by Volume
- 100%
- Shelf Life (from date of manufacture)
- 12 months
- Pot Life
- 2 to 3 hours at 25°C
With accelerator 20 minutes at 25°C - Fully Cured
- 48 hours at 25°C
With accelerator 24 hours at 25°C - Flammability
- Burns but does not readily support combustion
- Colour(s)
- Grey
- Suitable For Use On
- Marine Application
- Application Method
- Sealant Gun
- Manufacturer
- Fosroc
- Usages
- Water Industry Sealants
- Product Usage Type
- Sealer
- Product Range
- Nitoseal
Questions
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IMPORTANT SHIPPING & DELIVERY INFORMATION
Fosroc Nitoseal PU12 is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
All delivery costs below are excluding VAT
Fosroc Equipment Cleaner
Fosroc Equipment Cleaner is for use with selected products within the Fosroc range. Used with selected products within the Fosroc Nitoseal range.
Fosroc Ancillaries
Fosroc Ancillaries are a range of application tools and accessories for use when applying Fosroc products. Range Includes: Fosroc Sealant Mixing Paddle, Fosroc Thioflex Follower Plate, Fosroc Polyurea Accessories Please see below for detailed information and order references where applicable
Fosroc Primer P7
Fosroc Primer P7 is a one part chemically active clear liquid for brush application to concrete, stone, brickwork, timber and unglazed edges of ceramic tiles. For use as a primer before Fosroc Thioflex 600 and before selected products in the Fosroc range including Fosroc Flamex Two Please see the Product Data Sheet for the relevant base...
Fosroc Nitoseal PU12 Accelerator
Fosroc Nitoseal PU12 Accelerator is a component added to Fosroc Nitoseal PU12 when mixing to enhance the initial cure rate, so that work can be completed between tides. For special circumstances, such as sealing sea defence works in tidal areas At 10°C the seal can be subjected to tidal immersion approximately 60 minutes after application,...