Sentinal LS-1L Leak Sealer

Leave-in additive for sealing minor leaks and weeping joints.

This product is ideal for sealing small leaks or weeping joints on all types of indirect central heating systems. It is an easy-to-administer solution to the problem of weeping joints or pinhole leaks and it is compatible with other Sentinel products. Sentinel Leak Sealer will not cause blockages within the system.

Key features

Seals all minor leaks.Easy to apply.Will not cause blockages within the system.Compatible with other Sentinel products.Readily dispersible. Suitable for all metals including aluminium.Compatible with elastomers.Non-toxic and non-irritant.Manufactured under a quality system conforming to ISO9001.

Description
This product is an easy solution to small leaks or weeping joints in central heating systems. Ready to apply to the system, it is easy to dose and can be in the system in a matter of minutes if you use the Rapid-Dose format of this product.

Sentinel Leak Sealer is a straightforward way to take care of such leaks, which can develop into bigger issues if left unattended. Once inside the system, it will form a soft seal over the leaking area(s), normally within 24 hours. It is suitable for all types of indirect central heating systems and is compatible with other Sentinel products which may already be in the system.

Usage
1 litre or 1 400ml aerosol of Sentinel Leak Sealer is sufficient to treat a typical domestic system of up to 10 radiators. Larger systems should be dosed with twice this amount. After dosing is complete, the system should be operated normally for at least 15 minutes as heat is beneficial to the sealing process.

Open Systems: Dose via F&E cistern, via a by-pass feeder or use a Sentinel Dosing Vessel.

For details of how to dose using the Rapid-Dose format of this product, please watch the Rapid-Dose video.

Sealed Systems: If the system is empty, add to any convenient point before filling. If full, use aSentinel Dosing Vessel to inject via the filling loop or other access point.

Delivery Information

We currently use Royal Mail, DPD, and Evri as our delivery partners. Orders are shipped on a 24-hour next working day service.

Please note, all delivery time frames provided are estimates only. While we aim to meet these times, delays may occasionally occur due to circumstances beyond our control.

Orders placed before 2:00pm (Monday to Friday) will be dispatched the same working day, subject to stock availability. Orders placed after 2:00pm will be dispatched the next working day. Orders placed after 2:00pm on a Friday will be dispatched on the following Monday (excluding bank holidays). We do not dispatch orders on weekends or bank holidays.

Delivery & Signatures

All orders are sent using tracked delivery services. For higher value orders, a signature will be required upon delivery.

For lower value orders, parcels may be delivered without a signature and may be left in a safe place or with a neighbour at the courier’s discretion.

If you choose to amend your delivery preferences directly with the courier (for example, requesting the parcel to be left in a safe place), this is done at your own risk. We cannot accept responsibility for any loss or damage once the parcel has been delivered in accordance with those instructions.

Delivery Options

Standard Delivery – £4.95

1–3 working days on in-stock items (excluding weekends and bank holidays).

1–5 working days on non-stock items.

Next Working Day Delivery – £6.00

Order before 2:00pm for same day dispatch.

1–5 working days on non-stock items.

Free Delivery – Orders over £75.00

Next working day delivery on in-stock items.

1–5 working days on non-stock items.

Our next working day delivery services are not guaranteed. As we rely on third-party couriers, we cannot be held liable for delays or any consequential losses caused by late deliveries.

If your order contains multiple items and any are out of stock, the full order will be dispatched once all items are available, unless otherwise agreed in advance.