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Caliper Seals |Pistons
Molub-Alloy Paste White T – High Performance Assembly & Anti-Fretting Paste
Molub-Alloy Paste White T is a premium high-performance assembly paste designed to provide exceptional protection against fretting corrosion, stick-slip, wear, and seizure in demanding automotive, industrial, and workshop applications.
This white assembly paste applies cleanly and appears almost colourless when spread as a thin layer, making it ideal for precision assembly work where cleanliness and protection are equally important.
Formulated for universal assembly and thin-film lubrication applications, Molub-Alloy Paste White T helps simplify component assembly and future disassembly while protecting contact surfaces against corrosion, vibration-related wear, and moisture ingress.
Its advanced formulation provides excellent resistance to both hot and cold water while delivering long-lasting corrosion protection under harsh operating conditions.
Particularly effective in applications exposed to vibration and frictional movement, the paste helps prevent fretting corrosion and reduces stick-slip behaviour, making it ideal for hydraulic cylinders, open lubrication points, threaded assemblies, sliding surfaces, and mechanical components subject to oscillating movement.
The product also helps eliminate squeaking noises and improves smooth operation in moving assemblies exposed to high loads and thermal stress.
Suitable for temperatures ranging from -30°C to +250°C, Molub-Alloy Paste White T delivers reliable lubrication and anti-corrosion performance across a wide range of workshop, automotive, and engineering environments.
Key Features
• High-performance white assembly paste
• Prevents fretting corrosion and surface wear
• Clean application with almost colourless thin-film appearance
• Helps simplify assembly and future disassembly
• Excellent anti-seize and separating properties
• Resistant to hot and cold water
• Reduces stick-slip and frictional vibration
• Helps eliminate squeaking noises
• Provides long-lasting corrosion protection
• Suitable for hydraulic cylinders and moving assemblies
• Wide operating temperature range from -30°C to +250°C
• Suitable for automotive, engineering, and industrial applications
Applications
Molub-Alloy Paste White T is ideal for:
• Assembly lubrication
• Anti-fretting protection
• Threaded fasteners and fittings
• Hydraulic cylinders
• Sliding and contact surfaces
• Open lubrication points
• Components exposed to vibration
• Mechanical assemblies requiring anti-seize protection
• Automotive workshop applications
• Industrial machinery and engineering assemblies
Why Use Molub-Alloy Paste White T?
Mechanical components exposed to vibration, friction, heat, and moisture can suffer from fretting corrosion, seizure, stick-slip, and accelerated wear.
Molub-Alloy Paste White T helps protect components by:
• Reducing friction between contact surfaces
• Preventing corrosion and seizure
• Improving assembly and removal
• Minimising vibration-induced wear
• Protecting against moisture and contamination
This makes it ideal for long-term component protection and reliable assembly work.
Temperature Performance
Designed for demanding operating conditions, Molub-Alloy Paste White T remains effective across a wide temperature range:
• Operating temperature: -30°C to +250°C
• Suitable for hot and cold operating environments
• Maintains lubrication and protection under thermal load
Clean & Professional Assembly Solution
Unlike darker anti-seize compounds, this white assembly paste offers a cleaner, more professional appearance during application and servicing.
Benefits include:
• Cleaner working environment
• Reduced visible residue
• Easier inspection during assembly
• Professional workshop finish

For brake systems and is highly temperature-resistant (up to 1,000°C).
Available in 75ml tube and 5ml sachet
The advantages of Cera Tec:
• Non-conductive and contains no solids
• Suitable for ABS
• Facilitates brake installation
• Reduces brake squealing
• Protects against scoring and corrosion
• Free of copper and acids
• Pressure-resistant / high viscosity
Cera Tec is also suitable for lubricating:• Disc- and drum-brake systems
• Compressors
• Centralised lubrication systems
• Axle bearings
• Chains
• Seat rails
• Sunroof tracks
• Battery terminals
Application:
Apply a thin layer of Cera Tec on the marked sections
Find out about Textar product verification here
Sold Each.
x2 Required Per Car.
Fits On To Left And Right Brake Calipers.
Fits:
Porsche 911 1970>>1971
Porsche 911 / 912 1969>>1969
Porsche 914 1970>>1976
Diagram Ref No 28
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90435590200
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 914 (1970-1976)
600ml aluminium bottle
Halo GT is the latest formulation with a DOT 4 base suitable for the demands of motorsport (such as low compressibility and low viscosity). It has a dry boiling point of 336 degrees Celsius which is higher than the Brembo HT64. Whilst withstanding the demands of motorsport, Halo GT is suitable for track day use.
Brake Later. Release Faster. Accelerate earlier. Every Lap.
Halo GT is the ultimate DOT 4 racing brake fluid, fully compliant and optimized for the latest racing ABS systems. Engineered for ultra-fast response, thermal stability, and consistent pedal feel under the most demanding race conditions.
FEATURES
01 | Derived from P1 Proven under extreme conditions. Built on Halo P1 chemistry, developed for the highest demands of motorsport.
02 | Designed for GT racing The ultimate in DOT 4 racing brake fluid, fully compliant and optimized for use with the latest racing ABS systems.
03 | Ultra low viscosity Faster system response for immediate feedback and precise control.
04 | Fade Resistant Technology™ Performance that lasts. Maintains consistent pedal feel under repeated heat cycles with minimal fade as temperatures rise.
05 | Corner focused Control where it matters most. Optimised for braking zones, release precision, and clean transition back to throttle.
Performance benefits
Sharper response. Better control. Faster exits from start to finish.
• Faster hydraulic response under load
• Greater stability through repeated braking cycles
• Quicker piston release for reduced drag
• More precise brake modulation
• Reduced thermal stress in extreme conditions
• Earlier throttle application on corner exit
Speed of Response.
Speed on Track. Modern Braking Systems demand instant response. Halo GT’s ultra-low viscosity allows the brake system to respond faster, improving communication between driver and car.
Faster pressure build-up. Cleaner release. Greater control at the limit.
Brake later. Release faster. Accelerate earlier.
Most races are won in the corner.
Anyone can be fast on the straight. But cornering takes skill. Performance is defined under braking, through release, and on exit. Halo GT is engineered for these moments. Giving drivers the confidence to brake faster, carry speed through the corner, and accelerate earlier. And continue to do that consistently, lap after lap.
For GT drivers who understand Performance.
Not for Everyone. Built for those who demand more.
Also suitable for Semi-Pro, Club Racing and Trackday performance drivers.
Technical Specification.
• 336°C dry boiling point
• Ultra-low viscosity of 1350 cSt
Designed to maintain consistent performance under heat and repeated load, with full data available for detailed evaluation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
GTEUK198L2
The product you are viewing cross references to these numbers
Hydra tec lubricant for maintenance work and protection Textar
Available in 75ml Tube or 5ml Sachet
The Advantages of Hydra Tec:
- Facilitates the installation of hydraulic brake components
- Tested compatibility with commercially available braking fluids (DOT3, DOT4, DOT4LV, DOT5.1)
- Free of mineral oils and compatible with EPDM rubber
- In addition, running surfaces are protected against corrosion
Hydra Tec is suitable for lubricating:
- Cylinder running surfaces
- Pistons
- Sealing elements
Application:
Apply a thin layer of Hydra Tec on the marked sections.
Note:
Hydra Tec should be applied thinly and evenly.
Never use mineral oils or greases as substitutes.
Do not apply the product on friction surfaces of brake pads or brake discs.
Find out about Textar product verification here
Rear Brake Caliper Piston & Seal Kit
1 kit per caliper - 2 required per car
High-quality rear brake caliper piston and seal kit designed for classic Porsche 356B, 356C, 912, and early 911 2.0ltr models.
This complete rebuild kit restores braking performance, hydraulic sealing, and
smooth piston operation for rear brake calipers fitted with 35mm pistons.
Fits:
- Porsche 356B 2000 GS Carrera 2
- Porsche 356BC 1600
- Porsche 356BC 1600 SC
- Porsche 356BC 2000 GS Carrera 2
- Porsche 356BB 2000 GS Carrera 2
- Porsche 356BC 1600
- Porsche 356BC 1600 SC
- Porsche 356BC 2000 GS Carrera 2
- Porsche 911 2.0ltr
- Porsche 912 1.6ltr
Kit contains
- 2 x 35mm caliper pistons
- 2 x 35mm piston dust caps
- 2 x 35mm piston seals
- 2 x bleed nipples with covers
Manufactured to OEM specifications, these components ensure precise fitment, reliable hydraulic sealing, and long-term durability. Ideal for classic Porsche restoration projects, brake servicing, or preventative maintenance.
Key Features
• Rear brake caliper piston and seal kit
• Designed for 35mm rear brake caliper pistons
• OEM-quality materials for reliability and durability
• Restores hydraulic sealing and piston movement
• Ideal for classic Porsche brake rebuilds
• Suitable for restoration and maintenance projects
Function and Purpose
This kit is essential for maintaining rear brake caliper performance.
It helps to:
• Restore smooth piston operation
• Maintain correct hydraulic pressure
• Prevent brake fluid leaks
• Protect pistons from dirt and moisture
• Ensure safe and consistent braking performance
Why Replace Brake Pistons & Seals?
Brake caliper components wear over time due to age, moisture, and heat.
Common issues include:
• Corroded or sticking pistons
• Perished seals and dust caps
• Brake fluid leaks
• Reduced braking efficiency
• Uneven braking performance
Replacing pistons and seals restores reliability, safety, and original braking feel.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
356946235
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Titanium is a very poor conductor of heat, and reduces the heat transfer by approximately 90%
The standard aluminum brake pistons are light but very heat conductive which means the thermal energy from the brake pad transfers easily to the brake fluid.
The castellated contact edge promotes airflow into the piston cavity and reduces the contact surface with the pad and thus further decreases heat transfer to the brake fluid.
We designed using advanced engineering simulations (FEA) to achieve the same weight than their aluminum counterparts while maintaining superior structural strength.
As opposed to stainless steel pistons, our titanium alloy pieces weigh the same as the original aluminum pistons; and they will never corrode and damage the seals causing the caliper to leak.
Price is per pair of pistons
**Please check the piston diameter you need as some calipers take two different sizes. Sizes shown are the piston outer diameter (OD)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SL-BKP-
The product you are viewing cross references to these numbers
Porsche Caliper Seals & Pistons | Design911 Precision Hydraulic Components for Restoring Braking Power & Reliability
Caliper seals and pistons are vital hydraulic components in your Porsche’s braking system, ensuring smooth, consistent, and powerful brake performance. The piston transfers hydraulic pressure to the brake pads, while the seals maintain fluid integrity, preventing leaks and contamination. Over time, wear, heat, and moisture can compromise these parts — reducing braking efficiency and safety. Replacing caliper seals and pistons is essential for maintaining consistent pressure, pedal feel, and reliability.
At Design911, we offer a comprehensive range of caliper seals and pistons, engineered for precision fitment and durability. Each component is crafted from high-grade materials designed to resist corrosion, heat, and hydraulic fluid degradation. Perfect for servicing, performance upgrades, or complete caliper restoration, these components restore your Porsche’s braking response and ensure long-term dependability.
What Do Caliper Seals & Pistons Do?
These two components work together to create and maintain the hydraulic pressure that powers your Porsche’s braking system.
Core Functions:
• Pistons convert hydraulic pressure into clamping force against the brake
pads.
• Seals prevent brake fluid leakage and maintain system pressure.
• Ensure smooth piston retraction for consistent pad contact.
• Protect against contaminants, moisture, and corrosion.
• Maintain balanced braking and pedal feel across all wheels.
High-quality seals and pistons ensure your Porsche delivers the stopping power, responsiveness, and control expected of its engineering pedigree.
Why Do Caliper Seals & Pistons Fail or Degrade?
Due to their exposure to heat, pressure, and environmental factors, these parts naturally deteriorate over time — especially in performance or high-mileage vehicles.
Common Causes of Failure Include:
• Seal wear or cracking from age and fluid degradation.
• Corrosion or pitting on pistons caused by moisture ingress.
• Brake fluid contamination leading to swelling or hardening.
• Heat damage from aggressive braking or track use.
• Improper installation or infrequent brake servicing.
When seals or pistons fail, symptoms such as fluid leaks, uneven braking, or sticking calipers can occur — compromising braking safety and performance.
Why Replace or Upgrade Your Porsche Caliper Seals & Pistons?
Replacing these components restores full hydraulic integrity and smooth brake operation. Design911’s premium-grade seals and pistons are designed for longevity, precision, and compatibility across Porsche models — ensuring reliability under road or track conditions.
Key Benefits:
• Restores consistent braking pressure and pedal feel.
• Prevents leaks and contamination in the hydraulic system.
• Improves caliper response and even brake pad wear.
• Manufactured from corrosion- and heat-resistant materials.
• Direct-fit design for fast, accurate installation.
• Ideal for restorations, rebuilds, or performance upgrades.
Design911’s Porsche caliper seals and pistons deliver unmatched performance and durability, helping your Porsche maintain the sharp braking response it was built for.
Highlights
• High-quality Porsche caliper seals and pistons for all
models.
• Precision-engineered for hydraulic efficiency and longevity.
• Resistant to corrosion, high heat, and fluid degradation.
• Essential for brake caliper rebuilds or restorations.
• Improves pedal feel and braking consistency.
• Perfect for classic and modern Porsche vehicles.