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Densoseal 16A - CTN 8 x 1KG

Densoseal 16A - CTN 8 x 1KG

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£166.80(Inc VAT)
£139.00(Ex VAT)
SKU: 940Category: Profiling Brand: Denso
Densoseal 16A is a water-resistant cable-duct and pipe sealant that prevents the entry of gas and water. This non-setting mastic can be applied to wet... Read full description

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Densoseal 16A is a water-resistant cable-duct and pipe sealant that prevents the entry of gas and water. This non-setting mastic can be applied to wet surfaces and creates a permanent chemical bond on masonry, wood, rubber, fabric building boards or brickwork.

Densoealseal 16A is made from a firm fibrous mastic based on polybutene, mineral fillers, organic fibres and water displacing materials. Preformed strip. Densoseal 16A is especially efficient for those applications where ducts are wet or liable to fill with water

Densoseal 16A uses

It's typically used to profile mechanical joints on hot pipes, seal cable ducts, service entry pipes or conduits.

Benefits of Densoseal 16A

  • Easy application
  • Won't dissolve with humidity
  • Allows for movement
  • Doesn't contain VOCs
  • Seals against water and gas ingress
  • Complies with British Telecom Specification M212C
  • Unaffected by natural gas and water.
  • Adheres to wet surfaces.
  • Withstands at least 20kPa (2 metre head) water pressure for a minimum of 30 minutes.
Densoseal 16A Size: CTN 8 x 1KG

Download the Densoseal 16A technical datasheet (PDF)

Estimated delivery 2-3 working days to UK mainland



Delivery and Return

Charges start from £6.90 inc vat on small, lightweight orders and £22.50 inc vat on heavier or difficult to transport items.

All small item orders with a value of £100.00 inc vat will be carriage paid.

All large item orders with a value of £200.00 inc vat will be carriage paid.

*small or large classification of items are determined by weight and dimension of product*

Please note that your order may need to be split into separate packages if over 30KG.

All of the above is based on UK Mainland deliveries, further charges may be incurred if the delivery address is outside of this.

We are also currently unable to deliver outside of the UK on our regular carrier so if you require delivery outside the UK please call or email the details to the office as we reserve the right to refuse service or refund orders based on this.

Guarantee next day delivery.

Some of our products have a note that states – if ordered before 1pm and being delivered to UK mainland on a next day basis.

Please note that given the current circumstances alot of carrier companies are struggling to keep up with demand and although we do book these deliveries as next day services, the carriers cannot always fulfil these and an extra day may be required.

A high percentage of our advertised goods are stock items but be aware that if you are taking very large quantities of stock that we may not be able to fill your order fully on first delivery. Please call the office to check to not be disappointed.

We are also an active trade counter and part of a larger network of companies so stock can be taken at any time but we will always aim to deliver your goods as soon as possible.

Also if ordered along side goods that we cannot guarantee next day delivery on, these will be delivered based on the schedule of the other item.

Signature required on delivery.

The carrier we currently use requires a signature for all deliveries as a proof of delivery. If you cannot guarantee someone will be home to receive this please leave delivery instructions for a safe place or neighbour to leave your goods with. Due to covid and new contactless deliveries, our carriers will not require a signature but will take down the recipients name as POD.

If no one is available to take the delivery, the courier will leave details at the address to rearrange delivery or may leave with a neighbour. Note we may need to make an additional handling charge for the return and re-delivery if a package is unable to be delivered multiple times due to no one being home to receive this. Due to covid our carriers are restricting the number of re-delivery attempts.

After three attempted deliveries our carrier will return the goods to ourselves and in this worst case situation, we may cancel the order and refund your money, excluding any additional charge for the return and re-deliveries.

Materials delivered from our own stock.

Normally 1 – 2 days (this can sometimes be longer if we are waiting for manufacturers’ stock to arrive into ours).

If the order is placed before 1:00pm and all of the items are in stock, then we will endeavour to dispatch your order same day for delivery the following day.

This still applies for deliveries out of our local area but please note that we use independent carriers so be aware that there may be external factors which we cannot control (e.g Far out postcodes or local traffic situations)

Materials delivered direct from the manufacturer.

There may be some occasions when it is more efficient or cost effective to have the materials shipped direct from our suppliers to the customer.

We will place the order immediately upon receipt of your order but this can sometimes take a few working days depending on the manufacturers production schedule or carrier used.

We will always endeavour to get the goods to the customer at the earliest possible date but if these are urgently required, please speak to us to check.

Please note that many manufacturers will offer a next day delivery service at an increased delivery cost and also a cut of time for this order to be placed (usually around 11am / 12pm)

Please call us on 08454 530 017 between 8am and 5pm Monday – Friday or email us on [email protected] for any delivery queries, or urgent requirements.

Please read our full terms and conditions with regard to full details on deliveries.

Densoseal 16A is a non setting, self supporting mastic which can be applied to wet surfaces. It is used as a cable-duct and pipe for effective prevention of the ingress of gas and water from entering ducts and conduits. It is particularly useful when applied in areas below ground level to prevent entry of gas or water into buildings. It may also be used for profiling mechanical joints on hot pipes to allow application of tapes.

*For advice on specific uses, please contact our helpful team.

Prior to application, we recommend to store the material between 70°F (21°C) and 105°F (41°C) for approximately 24 hours, so it's at optimal condition. When ready to apply, rotate each end in a twisting motion, in opposite directions, until moldable. Hand-packing Densoseal 16A into the duct ends and moulding it tightly around the cables and against the duct ensures there are no holes or fractures. The depth of the mastic should be at least as deep as the duct diameter.

*For advice on specific uses, please contact our helpful team.

At temperatures of 20°C-25°C, the Densoseal 16A will set within a few hours and will cure completely within 24-48 hours.

No, this product is designed for use in ducts located in tight areas or beneath ground level, where high foot traffic is not prevalent.

*For advice on specific uses, please contact our helpful team.

Densoseal 16a can adhere to exposed surfaces such as glazed earthenware and steel or unplasticised materials such as lead, polythene or PVC.

*For advice on specific uses, please contact our helpful team.

Yes, this product can be applied to wet surfaces and is used predominantly in underground settings where water may be present. Densoseal 16A can withstand 2.9 PSI (20 kPa) water pressure for over 60 minutes.

*For advice on specific uses, please contact our helpful team.

Yes, it can be applied over any existing coatings or finishes as it adheres to masonry, wood, rubber, fabric building boards or brickwork. All surfaces should be sufficiently cleaned and free from extensive damage before application, in accordance with the method of application.

*For advice on specific uses, please contact our helpful team.

All surfaces should be thoroughly cleaned to ensure there are no pre-existing sealants, loose rust, scale, and dirt, so that the surface is free of contaminants.

*For advice on specific uses, please contact our helpful team.

No, the product should be applied by moulded and applied hand for best results, so it is packed and shaped into the appropriate area.

*For advice on specific uses, please contact our helpful team.

Once used, ensure any spillages any collected and disposed of safely and appropriately. Do not dispose this product into any drainage systems.