Penosil
Penosil Lead Flashing 385 Roof and Flashing Silicone x 300ml - Grey (Box of 24)
Penosil Lead Flashing 385 Roof and Flashing Silicone x 300ml - Grey (Box of 24)
SKU:PE385GR
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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- Shipping protection for peace of mind
- Fast processing and delivery
- Flexible delivery options


Product Information
With a weight of just 0.437kg the Penosil Lead Flashing 385 is easy to handle and apply making it an ideal choice for both professional roofers and DIY enthusiasts. The cartridge measures 230mm in height and has a diameter of 49mm allowing for precise application in even the most challenging areas. Its neutral cure formula ensures compatibility with a wide range of materials including lead making it a versatile addition to your toolkit.
This product is available in a box of 24 providing ample supply for larger projects or multiple jobs. The grey colour blends seamlessly with most roofing materials delivering a clean and professional finish. Whether you're sealing joints repairing flashing or undertaking a new roofing project the Penosil Lead Flashing 385 Roof and Flashing Silicone offers reliable performance and peace of mind.
Key Features
- High-performance roof and flashing silicone
- 300ml cartridge for convenient application
- Neutral cure formula for compatibility with various materials
- Weight: 0.437kg
- Dimensions: 230mm height 49mm diameter
- Grey colour for a professional finish
- Available in a box of 24
Pros & Cons
Pros- High-performance silicone ensures a durable and long-lasting seal.
- Neutral cure formula offers compatibility with a wide range of materials including lead.
- Convenient 300ml cartridge allows for easy and precise application.
- Lightweight (0.437kg) and easy to handle suitable for both professionals and DIY enthusiasts.
- Grey colour blends seamlessly with most roofing materials for a professional finish.
- Available in a box of 24 providing ample supply for larger projects or multiple jobs.
- May not be available in smaller quantities for smaller projects.
- Limited to grey colour which may not match all roofing materials.
- Requires a caulking gun for application which may be an additional purchase for some users.
Frequently Asked Questions
The Penosil Lead Flashing 385 Roof and Flashing Silicone is a high-performance solution designed to meet all your roofing and flashing needs. It provides a durable and long-lasting seal ensuring your roof remains watertight and protected against the elements.
The silicone is packaged in a convenient 300ml cartridge.
The cartridge weighs just 0.437kg making it easy to handle and apply.
The cartridge measures 230mm in height and has a diameter of 49mm.
The silicone is grey which blends seamlessly with most roofing materials for a clean and professional finish.
Yes the neutral cure formula ensures compatibility with a wide range of materials including lead.
Yes the Penosil Lead Flashing 385 is easy to handle and apply making it an ideal choice for both professional roofers and DIY enthusiasts.
This product is available in a box of 24 providing ample supply for larger projects or multiple jobs.
The key features include high-performance roof and flashing silicone a 300ml cartridge for convenient application a neutral cure formula for compatibility with various materials a weight of 0.437kg dimensions of 230mm height and 49mm diameter a grey colour for a professional finish and availability in a box of 24.
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
Why Choose Us?
Factors |
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Other Stores |
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Customer service | Easy to reach, and eager to help | Difficult to contact |
Shipping speed | Fast and organised | Unpredictable |
Competitive pricing | Price match guarantee | What you see is what you get |
Loyalty program | Points + exclusive deals | Basic discounts |
Expert advice | Free 1-on-1 sessions | Self-service only |
Trade accounts | Bespoke pricing, trade credit, and dedicated account manager | none available |