Penosil
Penosil Window and Door Silicone 312 300ml - All Colours
Penosil Window and Door Silicone 312 300ml - All Colours
SKU:PE312WH
Est Delivery between 6th Feb and
12th Feb.
How much will I need?
We recommend adding 10% of additional product to the calculation to account for errors, damages, and obstacles in your project
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Product Information
With a convenient cartridge the Penosil Window and Door Silicone 312 is easy to apply and offers excellent adhesion to a variety of surfaces including glass aluminium and PVC. The neutral cure formulation means it is non-corrosive and safe to use on sensitive materials making it an ideal choice for both residential and commercial projects. Its versatile application ensures that it can handle the demands of any sealing task providing long-lasting protection against the elements.
Weighing just 0.38kg and designed for ease of use this silicone sealant is compact and easy to handle allowing for precise application even in tight spaces. The cartridge is compatible with standard caulking guns for effortless dispensing. Whether you're sealing new installations or repairing existing seals the Penosil Window and Door Silicone 312 is your go-to solution for achieving a flawless finish.
Key Features
- Premium quality neutral cure silicone
- Non-corrosive and safe for sensitive materials
- Excellent adhesion to glass aluminium and PVC
- Weather-resistant for long-lasting protection
- Compact and easy to handle
- Available in various colours for a clean finish
Pros & Cons
Pros- Premium quality neutral cure silicone ensures durability and reliability
- Non-corrosive formulation makes it safe for use on sensitive materials
- Excellent adhesion to a variety of surfaces including glass aluminium and PVC
- Weather-resistant properties provide long-lasting protection against the elements
- Compact and lightweight design (0.38kg) for easy handling and precise application
- Available in various colours to blend seamlessly with window and door frames
- Requires a standard caulking gun for application which may not be included
- Limited to sealing applications not suitable for structural repairs
- May require multiple cartridges for larger projects
Frequently Asked Questions
The Penosil Window and Door Silicone is a premium quality sealant designed for sealing windows and doors. It is a neutral cure silicone that is suitable for both indoor and outdoor applications providing a durable and weather-resistant seal.
This silicone sealant offers excellent adhesion to a variety of surfaces including glass aluminium and PVC.
Yes the neutral cure formulation of this silicone is non-corrosive and safe to use on sensitive materials making it ideal for both residential and commercial projects.
The key features include:
- Premium quality neutral cure silicone
- Non-corrosive and safe for sensitive materials
- Excellent adhesion to glass aluminium and PVC
- Weather-resistant for long-lasting protection
- Compact and easy to handle
- Available in various colours for a clean finish
Yes it comes in a convenient cartridge that is easy to apply and compatible with standard caulking guns for effortless dispensing. Its compact design and lightweight (0.38kg) make it easy to handle allowing for precise application even in tight spaces.
Yes this silicone sealant is versatile and can be used for sealing new installations as well as repairing existing seals ensuring a flawless finish every time.
The silicone is available in a variety of colours allowing it to blend seamlessly with most window and door frames for a clean and professional finish.
Delivery Information
Est Delivery between 6th Feb and
12th Feb.


Delivery will always take place on a weekday (Mon - Fri excl. public holidays).
An exact delivery charge will be calculated at checkout based on your order and location.
Frequently asked questions
Can you help me pick the right insulation for my project?
Yes, of course!
Our team is ready to assist you with any questions and queries you may have.
Just reach out to us via any of the following methods:
Call us: 020-3582-6399
Email us: sales@i4lgroup.co.uk
or click the Livechat tab at the bottom of your screen.
How do I track my order?
As soon as your order is dispatched, you'll receive a dispatch email with delivery dates and details for your order.
If you require an update on your order, you can email customerservice@i4lgroup.co.uk with your order number for assistance.
Can I order now and pay later?
Yes, we offer a variety of flexible payment options to all our customers.
When checking out online, you'll be able to avail of multiple buy now, pay later options with Klarna or PayPal.
The flexible payment options available to you at checkout will be based on the total value of your order.
For B2B customers, you can apply for a 30-day trade credit account, and you'll also unlock:
- Dedicated trade pricing
- Loyalty points and rewards
- A dedicated account manager
Do you really have the best prices online?
Yes! We even have a price match guarantee.
We are so confident that we have the best prices out there that we will match the price of any other online or local retailer.
If you find the same product cheaper elsewhere, we will match the price — just send us the quote or website link.
Read more: Price Match Guarantee
I have a large-scale project, can I get a quote?
Yes, if you are carrying out a construction project that requires a large quantity of materials, email sales@i4lgroup.co.uk with the following information and we will get back to you with your very own bespoke price quote:
- Delivery postcode and address
- Mobile number
- Company name
- A list of required materials and their quantities
Can I open a trade account?
Yes! Trade customers can open a B2B account to unlock bespoke pricing, B2B discounts, trade credit, loyalty points, and a dedicated personal account manager.
You can learn more here: Open a Trade Account
Can I cancel or amend my order after placing it?
Yes, if your order has not yet been processed for dispatch, cancellation/ amendments should be possible.
Our team works quickly to get your order delivered as soon as possible so it is likely that your order will be processed for dispatch within 2-3 hours of purchase.
Contact us immediately via customerservice@i4lgroup.co.uk or call 020-3582-6399 during opening hours.
If you wish to amend your order after it has been processed by our team, it will be treated as a return or a separate new order.
Read more: Returns
What is your returns policy?
Changed your mind about your order? no problem! we offer a 14 day returns period after your order is delivered.
To avail of this your order must be unused, in its original packaging, and suitable for resale.
Refunds are issued immediately after the goods are received and inspected by our team.
If an item arrives damaged or incorrect, you must notify us within 48 hours of delivery.
Prior approval is needed before returning any goods – do not return without authorization.
Special order items are exempt from returns.
Read more: Returns