Improved Recovery, Secure Availability & Trusted Sealing Performance
LIDPACK® 3500 is now supplied as LIDPACK® 3800 — offering improved recovery, reliable availability and the same proven sealing performance trusted by the marine industry worldwide.
At Beldam Crossley, product evolution is always driven by long-term value for our customers. The transition from LIDPACK® 3500 to LIDPACK® 3800 was made to protect supply continuity, control cost volatility, and deliver enhanced in-service performance — without disruption to existing applications.
LIDPACK® 3500 was historically manufactured with a Hypalon® rubber core. While technically effective, Hypalon became increasingly:
To ensure customers could continue specifying Lidpack with confidence, Beldam Crossley introduced Lidpack® 3800, engineered with a high-performance EPDM core.
This change ensures customers benefit from a more secure supply chain, consistent quality, and long-term product availability — all critical for planned maintenance and fleet-wide standardisation.
While LIDPACK® 3800 directly replaces LIDPACK® 3500, it also delivers tangible performance advantages.
Benefits of LIDPACK® 3800
LIDPACK® 3500 is no longer manufactured.
All LIDPACK® 3500 requirements are now fulfilled by LIDPACK® 3800.
If your drawings, spares lists, maintenance manuals or tender documents reference Lidpack 3500, these should now be updated to Lidpack 3800.
Our team regularly supports ship operators, shipyards and procurement teams with specification updates and product cross-references.
EPDM is widely specified in critical sealing applications thanks to its:
This material choice allows LIDPACK® 3800 to deliver improved recovery while maintaining the dependable sealing performance customers associate with Lidpack.
The evolution from LIDPACK® 3500 to LIDPACK® 3800 ensures customers receive:
LIDPACK® 3800 continues the legacy of Lidpack — engineered to meet today’s operational demands while protecting customers against future supply risk.
In addition to LIDPACK® 3800, Beldam Crossley supplies a comprehensive range of pilot packing and braided sealing products, supporting marine hatch covers, deck equipment and auxiliary sealing applications.
Whether you are maintaining existing vessels or specifying new builds, our team can help you select the right sealing solution with confidence.
Contact us to discuss your LIDPACK® 3500 replacement requirements or to explore our full range of braided sealing products.
All Beldam Crossley products are manufactured to an incredibly high standard. To do this, we manufacture from two locations based in the northern part of the UK. We operate to international global standards including BS EN ISO 9001 and BS EN ISO AS 9100.
We work within industries where quality is paramount, and we take this responsibility very seriously. Many of the products we provide are used to protect lives – failure is not an option.




We have been innovators in our industry for over a century. Since 1876 we have a solid track record of providing industrial sealing & bearing technology that protects lives, investments and environments.