Norsound NOR710 Acoustic Perimeter Seal – 10 × 10.2mm × 2100mm is a self-adhesive, surface-mounted seal designed for installation around the head and jambs of acoustic and smoke-control doorsets.
The profile combines a rigid PVC mounting section with flexible sealing blades. When the door closes, the blades deflect against the opposing surface to help close the operating gap between the door leaf and frame.
This helps restrict:
The NOR710 is fixed using an integral self-adhesive backing, so no routed groove or mechanical fixing is normally required.
Each seal is supplied in a fixed 2100mm length and is available in:
An acoustic perimeter seal closes the small gaps that remain around the head and vertical sides of a closed door.
Even where a door leaf has a high mass and strong acoustic performance, sound can pass through untreated gaps between the door and frame.
The NOR710 creates flexible contact around the door perimeter, helping reduce this direct air path.
It should normally be used as part of a complete door-sealing system incorporating:
The NOR710 is designed for installation around:
The manufacturer’s standard fitting arrangement places the adhesive edge against the frame, with the rear blade positioned against the door stop.
Norseal also permits the adhesive edge to be fitted directly to the door stop where this suits the frame configuration.
The seal should be installed with the door fully open so the fixing surface is accessible and the profile can be positioned accurately.
The NOR710 does not require a routed groove.
Its self-adhesive mounting edge is applied directly to a clean and dry frame or stop surface.
This makes the seal suitable for:
The fixing surface must be stable and free from dust, grease, moisture and loose coatings.
The NOR710 uses flexible blades to create multiple sealing contacts between the door and frame.
When correctly positioned, the blades deflect as the door closes rather than relying on a rigid compression block.
This helps provide:
The blades should contact the door without becoming completely flattened or preventing the door from closing and latching.
Norseal’s fitting instructions specify a 3mm gap between the door and frame for the standard installation arrangement.
The actual permitted gap on a particular doorset may also be controlled by:
The NOR710 should not be used to compensate for an excessively large, inconsistent or badly aligned perimeter gap.
The NOR710 has been acoustically tested in accordance with BS EN ISO 10140-2.
It helps reduce sound leakage by sealing the air path between the closed door and frame.
The individual perimeter seal does not have a universal standalone decibel rating.
Final acoustic performance depends on the complete door assembly, including:
Any published acoustic rating applies to a tested complete doorset rather than the NOR710 strip alone.
The NOR710 has been smoke tested in accordance with BS 476-31.1.
When correctly fitted, the flexible blades help restrict cold smoke passing through the operating gap around the head and jambs.
A complete smoke-control doorset may also require:
Smoke performance does not provide a standalone fire-resistance rating.
Norseal currently associates the NOR710 with Certifire Certificate CF629.
The NOR710 itself is an acoustic and smoke perimeter seal. It does not contain an intumescent fire-sealing element and must not be described as independently providing an FD30, FD60 or other fire-resistance period.
Where the seal is used on a fire-resisting doorset:
The acoustic and smoke seal may be used alongside separately specified intumescent fire-door seals where required.
The NOR710 has been tested to 1,000,000 operating cycles.
This makes it suitable for frequently operated doors in environments such as:
Cycle testing relates to the tested seal profile and does not remove the need for routine inspection and maintenance.
The NOR710 is manufactured using rigid and flexible PVC components.
The rigid mounting section provides:
The flexible blades provide:
This product is available in:
Colour affects the visible appearance of the seal but does not change its profile dimensions or performance classification.
Each seal in this product range is supplied as one 2100mm length.
The profile can be cut using a sharp knife to suit the height and width of the frame.
A typical single-leaf door will usually require separate pieces for:
The number of 2100mm lengths required will depend on the dimensions of the opening and the desired joint arrangement.
Norseal also manufactures the NOR710 in a 3000mm length, but that length is not included within the current available product range.
The NOR710 treats the head and jambs but does not seal beneath the door.
It can be combined with a suitable Norsound door-bottom seal, such as:
The complete combination should match the applicable acoustic, smoke or fire doorset evidence.
Before ordering, confirm:
The NOR710 should not be used to conceal or compensate for a warped door, loose frame, defective hinges or excessive perimeter gaps.
Norsound NOR710 Acoustic Perimeter Seal is a self-adhesive, surface-mounted PVC profile for sealing the head and jambs of suitable acoustic and smoke-control doorsets.
| Product Name | Norsound NOR710 Acoustic Perimeter Seal – 10 × 10.2mm × 2100mm |
| Brand | Norsound by Norseal |
| Product Reference | NOR710 |
| Product Type | Self-adhesive acoustic and smoke perimeter seal |
| Application | Around the head and jambs of acoustic and smoke-control doorsets |
| Primary Functions | Acoustic, cold-smoke, draught and airflow sealing |
| Fixing Method | Integral self-adhesive backing |
| Installation Type | Surface mounted; no routed groove normally required |
| Nominal Profile Width | 10mm |
| Overall Profile Height | 10.2mm |
| Flexible Blade Dimension Shown on Drawing | Approximately 4.2mm at the lower blade position |
| Recommended Door-to-Frame Gap | 3mm in the standard manufacturer fitting arrangement |
| Material | Flexible and rigid PVC |
| Profile Construction | Rigid self-adhesive mounting section with flexible sealing blades |
| Available Length | 2100mm |
| Manufacturer’s Wider Length Range | 2100mm and 3000mm |
| Available Colours | Black, Brown, Grey and White |
| Acoustic Test Standard | BS EN ISO 10140-2 |
| Smoke Test Standard | BS 476-31.1 |
| Durability | Tested to 1,000,000 operating cycles |
| Certifire Reference | Norseal currently lists Certificate CF629 |
| Intumescent Fire Seal | No — this product does not replace a required intumescent strip |
| Standalone Acoustic Rating? | No — acoustic performance depends on the complete tested doorset |
| Standalone Fire Rating? | No — the NOR710 does not independently provide a fire-resistance period |
| Colour | Profile Size | Length | Product Code |
|---|---|---|---|
| Black | 10 × 10.2mm | 2100mm | NOR710/2100/BLK |
| Brown | 10 × 10.2mm | 2100mm | NOR710/2100/BRN |
| Grey | 10 × 10.2mm | 2100mm | NOR710/2100/GRY |
| White | 10 × 10.2mm | 2100mm | NOR710/2100/WHT |
Norseal’s general manufacturer order-code format is:
NOR710 / Colour – Length
Examples from the manufacturer’s documentation include:
The slash-separated product codes in the table above are the exact codes used within the current supplied product range.
A standard single-leaf door normally requires sealing at:
The precise number of 2100mm lengths required depends on the door dimensions.
For example, one 2100mm strip may cover one full-height jamb, while additional material will be required for the opposite jamb and head.
Measure every opening before calculating the quantity.
The NOR710 has been acoustically tested in accordance with BS EN ISO 10140-2.
No universal standalone decibel rating should be assigned to one length of seal.
Final acoustic performance depends on:
The NOR710 has been smoke tested in accordance with BS 476-31.1.
Effective smoke sealing requires:
The seal should not be treated as the only smoke-control component within a complete doorset.
The NOR710 is not an intumescent fire-only seal.
Where it is installed on a fire-resisting doorset:
The self-adhesive mounting surface should be:
Adhesion may be reduced on contaminated, damp, rough or unstable coatings.
Store the NOR710:
Do not fold the seal sharply or store heavy materials on top of the flexible blades.
Inspect the NOR710 regularly as part of the door-maintenance programme.
Replace the specified seal where it is:
Do not replace the NOR710 with a differently sized perimeter seal without confirming compatibility with the doorset specification.
Norsound NOR710 Acoustic Perimeter Seal is self-adhesive and installed around the head and jambs of a suitable acoustic or smoke-control doorset.
Norseal’s standard fitting arrangement positions the adhesive edge on the frame with the rear blade against the door stop.
The manufacturer also permits the adhesive edge to be fitted directly to the door stop.
Inspect the door and frame.
Confirm that:
Correct substantial alignment or gap defects before fitting the seal.
Open the door fully to provide unrestricted access to the head, jambs and door stop.
Norseal instructs that the NOR710 should be fitted with the door fully open.
Secure the door if necessary so it cannot move during installation.
Choose the fixing position permitted by the frame configuration and doorset specification.
The standard arrangement is:
Norseal also permits the adhesive edge to be fitted directly to the door stop.
Whichever arrangement is selected, maintain the same profile orientation around the complete head and both jambs.
Check the gap between the door and frame at several points around:
The manufacturer’s fitting instructions show a 3mm gap.
Do not rely on the flexible blades to correct a substantially larger or inconsistent gap.
Adjust the door, hinges or stop before installing the seal where necessary.
Remove all dirt, dust and loose material from the frame or door stop.
The fixing surface must be:
Allow any cleaning product to evaporate fully before exposing the adhesive backing.
Measure the first vertical jamb from the frame head down to the required finishing point.
The manufacturer instructs installers to apply the jamb pieces from the top towards the bottom.
The seal can be trimmed after application using a sharp knife.
Hold the NOR710 against the first jamb without removing the complete backing liner.
Check that:
Peel back a short section of the release liner to expose the self-adhesive edge.
Do not remove the complete liner at once.
Progressive removal helps:
Begin at the top of the jamb and press the adhesive edge firmly onto the frame or stop.
Work downwards while progressively removing the backing liner.
Maintain the rear blade against the door stop throughout the installation.
Do not:
At the bottom of the jamb, trim the seal cleanly using a sharp knife.
Make a straight cut without crushing or tearing the flexible blades.
The finished end should not obstruct the threshold, floor or automatic drop seal.
Repeat the same process on the opposite jamb:
Maintain the same profile orientation on both sides.
Measure the clear distance across the frame head between the installed jamb seals.
Position the NOR710 along the head with the rear blade against the door stop.
Peel the backing progressively and press the adhesive edge firmly into place.
Trim the head section accurately so the ends meet the jamb seals without a large open gap.
At both upper corners:
Closely fitted butt joints are preferable to bulky overlaps.
Press along the full adhesive edge of all three installed sections.
Pay particular attention to:
Confirm that no part of the mounting edge is lifting.
Close the door carefully and observe the flexible blades.
They should:
Stop and correct the profile if a blade folds backwards or becomes trapped.
Open and close the door several times.
Confirm that:
A door that no longer closes or latches correctly requires adjustment before being returned to service.
The NOR710 treats the head and jambs only.
Where acoustic or smoke containment is required, confirm that the bottom of the door is sealed using an appropriate:
Ensure that the lower ends of the NOR710 jamb seals meet the threshold-sealing zone without leaving open corner gaps.
Inspect the NOR710 regularly as part of the door-maintenance programme.
Check for:
Clean the seal using a soft cloth and a mild cleaning solution compatible with PVC.
Avoid:
Replace damaged sections using the same specified NOR710 profile and colour.
Correct surface preparation, alignment, blade orientation and door-gap control are essential to the operation of the NOR710.
The seal does not independently create an acoustically rated, smoke-control or fire-resisting door.
Final performance depends on:
For certified doorsets, install the NOR710 only in accordance with the applicable test evidence, assessment, certification and door-manufacturer instructions.
Before you continue, there are some essential items which we recommend you may need.
Sign up today and we’ll send your discount code straight to your inbox.
