Sikasil 825 Low Modulus Silicone Sealant 380ml
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Stock availability for Sikasil 825 Low Modulus Silicone Sealant 380ml
Glasgow
Unit 30 Deerdykes View, Westfield, Cumbernauld, Glasgow, G68 9HN, .
Essex
The Garage Unit. The Forge, Ockendon Road, North Ockendon, , RM14 3PS, .
Caldicot
Unit 16A Norman Way, Severn Bridge Industrial Estate, Caldicot, Monmouthshire, NP26 5PT, .
Leeds
Unit 14 Gelderd Trading Estate, West Vale, Leeds, , LS12 6BD, .
- Excellent tooling and slow skinning properties for large scale construction and glazing applications.
- Excellent adhesion - adheres to most common surfaces including glass, metals, plastics and wood (painted or unpainted), uPVC and polycarbonate.
- Excellent external weathering properties (over many years exposure).
- High viscosity non-slump formula.
- Resistant to fumed hydrogen peroxide and fumed formaldehyde once fully cured.
- Perimeter pointing internally and externally around PVCu /wood and powder coated aluminium.
- Sealing and as an adhesive onto PVCu, plastic trims and components.
- Sealing soft metals such as lead, copper and zinc.
- Weather sealing and joint sealing to pre-formed panels and curtain walling, glazing sealing and draught proofing.
- Glass to glass and glass to aluminium sealing.
- Parapet and roof weather sealing applications.
- Suitable as an expansion joint sealant.
- Bedding and sealing of Insulated Glass units.
SPC Supplies Delivery Schedule
Orders placed before midday will be dispatched for delivery the same day (except weekends and bank holidays) subject to stock availability.
Orders placed after midday will be dispatched the next working day (except weekends and bank holidays) subject to stock availability.
When you have placed your order our dispatch team will prepare your items for collection from our couriers. When the couriers have collected your items you will be emailed a tracking number.
Please note:ย Our offices and warehouses are open Monday to Friday, 8am to 5pm. We are closed on weekends and bank holidays. โWorking dayโ is Monday to Friday.
Please allow 3-5 working days for your delivery unless โNext Day Express Deliveryโ is stated.
If you have ordered a product that is listed as โNext Day Express Deliveryโ before midday on Monday to Friday your order will be processed an dispatched the same day delivered the next working day.
For example. If you order a product listed as โNext Day Express Deliveryโ on Monday before midday it will be delivered the next day (Tuesday).
If you order a product listed as โNext Day Express Deliveryโ on Friday before midday it will be delivered the next working day (Monday).
If you order a product listed as โNext Day Express Deliveryโ on Friday after midday it will be processed the next working day (Monday) and delivered the following working day (Tuesday).
Orders for UK Mainland
Any orders placed Monday to Friday before midday will be processed and dispatched the same day.
Any orders placed Monday to Friday after midday will be processed and dispatched on the next working day.
Saturday delivery is available on request only โ please call 01708 855 698 for a quote.v
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Sikasil 825 Frequently Asked Questions?
What is Sikasil 825 Low Modulus Silicone Sealant and what are its main features?
Sikasil 825 is a low modulus, neutral cure, alkoxy, low odour silicone sealant. It adheres to many surfaces without priming. Key features include easy tooling, excellent adhesion, superior external weathering, high viscosity, and resistance to harsh chemicals after curing.
What are the recommended uses for Sikasil 825 Low Modulus Silicone Sealant?
It’s ideal for perimeter pointing around uPVC, wood, and aluminium, sealing onto uPVC and plastic trims, and sealing soft metals (lead, copper, zinc). It’s also used for weather sealing, joint sealing in panels and curtain walling, glazing, and as an expansion joint sealant.
Does Sikasil 825 require a primer, and how should surfaces be prepared?
Priming is generally not required for most surfaces, but adhesion tests are recommended. For immersed joints or poor adhesion, use Sika Primer-3 N or Sika Primer-115. For non-porous surfaces needing improved adhesion, prime with Sika Aktivator-205. All surfaces must be clean, dry, and free from contaminants.
What are the drying time and movement capability of Sikasil 825 Low Modulus Silicone Sealant?
Skin time is 30-45 minutes (at 23 ยฐC / 50% RH). Curing is approximately 2 mm per day. It has a movement capability of ยฑ35% (ISO 11600) / ยฑ25% (ASTM C719). For best results, joint depth should be at least 5 mm.
What are the storage conditions and shelf life for Sikasil 825 Low Modulus Silicone Sealant?
Sikasil 825 has a 12-month shelf life from manufacture when stored unopened between +5 ยฐC and +25 ยฐC. Store upright in original containers, protected from sunlight and frost. Do not store above 25ยฐC, as this can reduce shelf life.





