KILARGO IS3100SI WEATHER RESISTANT DOOR BOTTOM SEAL - AVAILABLE IN VARIOUS SIZES
KILARGO IS3100SI WEATHER RESISTANT DOOR BOTTOM SEAL - AVAILABLE IN VARIOUS SIZES
The Kilargo IS3100si is a complete weather sealing set: an IS3070si door bottom seal plus an IS4100 threshold plate in one order. Together they seal 12–20 mm door bottom gaps against rain, cold smoke, sound, dust, light and insects – fitted without removing the door, with cover strips concealing every fixing.
Key Features
What It's Used For
The IS3100si is the one-order answer for leaky external doorways – the threshold stops water at floor level while the door bottom seal closes the air gap above it. Ideal for entry doors, balcony doors and commercial external doors exposed to weather.
Both parts cut back on site, and the seal's gasket and cover strip are replaceable to keep the set performing for decades.
Specifications
| Type | Weather sealing set – door bottom seal + threshold plate |
| Contents | IS3070si seal + IS4100 threshold (42.5mm, concealed fixings) |
| Gap size | Min. 12mm / max. 20mm |
| Finish | Silver anodised aluminium |
| Available sizes | 1000mm, 1250mm, 1500mm, 1750mm, 2000mm, 2250mm |
| MPN | IS3100si |
Compliance & What It Means
Fire and smoke approvals apply to tested, proprietary door assemblies. Always confirm suitability for your specific door type and required rating with your fire door manufacturer or building certifier.
What comes in the IS3100si set?
An IS3070si weather-resistant door bottom seal and an IS4100 threshold plate with snap-fit screw cover and anti-moisture vinyl insert - the tested combination for weather-sealing an external door bottom.
What gap does the IS3100si seal?
It suits gaps of 12-20mm. Measure between the door bottom (or stile) and the sealing surface with the door closed; outside this range, call Prime Hardware on 1800 329 028 for the right alternative.
How is it installed?
Fixing screws are supplied with detailed fitting instructions, and the fixing holes are pre-drilled (and slotted where applicable) so the seal can be positioned and adjusted accurately against the floor or threshold before final tightening.
What is the handling time for this item?
This is a non-stocked, specialty architectural item ordered directly from the Kilargo factory. Allow a standard handling time of 5–8 business days after cleared payment before dispatch. If your project needs express turnaround, call Prime Hardware on 1800 329 028 to confirm current factory lead times.
I'm not sure this is the right seal for my door — can I get help?
Yes. Door sealing depends on your door type, the gap sizes and what you need to seal against (fire, smoke, sound, weather or drafts). Call Prime Hardware on 1800 329 028 with your door details and gap measurements and we'll confirm the right Kilargo seal, size and finish before you order.
