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CAF 99 AXAD

CAF 99 AXAD

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2K-activated silicone.

2K-activated silicone (acetic, black, thixotropic) — cures quickly even in closed systems and thick layers

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  • Manufacturer
  • Networking type
  • Number of components
  • consistency
  • Mixing ratio
  • UV resistance
  • Paint has hardened
  • Self-leveling
  • Electrical insulation
  • Food contact
  • Suitable for medical use
  • Container

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High-temperature resistant black silicone CAF BLUESIL 2K silicone sealant ELKEM industrial Swiss bearing +300°C electrical insulation AXAD fast-curing glass ceramic oven door household appliances ship porthole

 
General Terms and Conditions.

Shipping usually within 1 to 3 business days
(availability will be confirmed after ordering)

. Express logistics. Fast and reliable within Switzerland & Europe.

Shipping from Swiss warehouse within 24 hours. Batch certificate. Invoice within 30 days (B2B). Technical support.
Shipping & Delivery

Usually 1 to 3 working days

Availability will be confirmed after order receipt.

Express logistics within Switzerland & Europe.

General Terms and Conditions →

Product data

Internal reference: 40-351.KT

HS code: 39100000

Internal reference: 40-351.KT
HS code: 39100000

CAF 99 AXAD
CAF 99 AXAD
CAF · Elkem Silicones · SKU 40-351.KT

CAF 99 AXAD is a 2K-activated silicone (acetic, black, thixotropic) — cross-links quickly even in closed systems and thick layers.

The Elkem CAF series comprises two-component (2K) silicone systems with activator — they cure even in closed gaps and thick layers, without relying on humidity. CAF 99 AXAD is tailored to specific industrial applications — the most important properties and areas of application are listed below.

2K — networked in a closed system

Unlike 1K silicones, CAF 99 AXAD also cross-links in closed systems and with thick layers — the right choice when humidity cannot penetrate to the adhesive seam.

CAF 99 AXAD in figures
2K
Activated
Black
Color
3-5 min
Potting time
25-30 min
Networked

What makes CAF 99 AXAD stand out

2K system
Cross-linked by activator — no humidity required, even in closed crevices.
Cross-linked in thick layers
Even thick layers vulcanize completely — 1K limitation bypassed.
Fast curing
Networked in 25-30 minutes — high-throughput capable.
Thixotropic
Stable on vertical surfaces — no dripping or running.
Excellent temperature resistance
Durable in hot applications such as glass-ceramic cooktops.
primer-free
Adhesion to numerous surfaces without pretreatment.

What is CAF 99 AXAD used for?

Glass ceramic cooktops
Bonding of glass-ceramic components in household appliances.
Oven doors and viewing windows
Bonding of viewing windows and door panels in ovens.
Ship portholes
Bonding of glass portholes in shipbuilding and the maritime industry.
Vehicle cabin windows
Bonding of cabin windows in rail vehicles and special vehicles.
stove belts
Sealing of hob edge components in household appliances.
Closed adhesive gaps
Applications where 1K silicones do not crosslink due to lack of humidity.
Data sheets & safety data sheet
Full TDS and SDS in DE, EN, FR — view or download directly.
To the documents →

processing

1
Prepare the substrate
Bonding surfaces must be clean, grease-free, and dry. On copper/zinc: proceed with caution (acetic acid – risk of corrosion).
2
Mix A & B in the correct ratio
Mix the 2K activator system homogeneously according to the TDS mixing ratio — typically with a static mixer or double cartridge.
3
Apply
Apply within the pot life (3–5 min) — cross-links even in closed systems and in thick layers.
4
Add
Immediately assemble the components and fix their position.
5
Curing
Full crosslinking occurs in 25–30 minutes at room temperature. Acceleration is possible with heat.

Recommended accessories

Bluesil Primer 131
Universal adhesion promoter for stainless steel, aluminum, PMMA and many metals.
View product →
Bluesil Primer PM 820
High-performance primers for polar plastics (PA, PES, ABS, PP) and composites.
View product →

Important instructions

Substrate preparation
Prepare bonding surfaces to be clean, grease-free, and dry. Adhesion is not possible on PE, PP, PTFE, and silicone oils. Conduct a preliminary test for critical material pairings.
Storage & Handling
Store in the unopened original container at 5 to 30 °C in a dry place, protected from sunlight. Consult the current SDS before opening.
Corrosion warning (Acetic)
Acetic crosslinking can attack copper, zinc, and galvanized steels. For corrosion-sensitive metals, choose the neutral variant (CAF 530, CAF 731, or CAF 730).
Application advice
SILITECH will advise you on the optimal CAF variant for your application — substrate pairing, corrosion and temperature requirements, desired appearance and processing workflow.

CAF 99 AXAD compared to related CAF products

Networking, mechanics, and temperature directly next to each other — all values ​​from the official Elkem TDS. “— " = not specified in the datasheet.

CAF 99 AXAD
Current product		 CAF 33 Black →CAF 33 White →CAF 30 White →
Networking system2K Acetic (Activator)1K Acetic1K Acetic1K Acetic
ColorBlackBlackWhiteWhite
Shore A hardness45252520
Elongation at break250 %500 %500 %500 %
Tensile strength3.5 MPa2.5 MPa2.5 MPa2.2 MPa
Tear resistance6.0 kN/m5.4 kN/m5.4 kN/m5.0 kN/m
Skin formation time3–5 min potting time6 min6 min6 min
Continuous operating temperature.+200 °C+250 °C+250 °C+250 °C
Peak temperature+250 °C+300 °C+300 °C+250 °C
Main applicationGlass ceramic cooktopsAutomotive in-situ sealsAutomotive sealsRailway vehicle seals
Topics & Application Areas
Key terms related to this product. Also useful for our search and filters.
High-temperature resistant black silicone CAF BLUESIL 2K silicone sealant ELKEM industrial Swiss bearing +300°C electrical insulation AXAD fast-curing glass ceramic oven door household appliances ship porthole

Technical specifications for CAF 99 AXAD

All 13 product information 7 Further properties 1 Physical properties 2 Electrical properties 1 Product approvals 2
Product information
brand CAF
Manufacturer Elkem Silicones
Networking type Two-component (acetate-activated)
Number of components 2K (two-component)
consistency Thixotropic
Mixing ratio 9:1
Container 301 g
Other features
UV resistance No
Physical properties
Paint has hardened Black
Self-leveling No
Electrical properties
Electrical insulation Yes
Product approvals
Food contact No
Suitable for medical use No

For binding values, please refer to the technical data sheet (TDS) in the "Documents" tab.

Documents and datasheets

Click on a document for a preview or the download icon for a direct download.

Technical Data Sheets (TDS) 3
CAF 99 AXAD A Black - Technical Data Sheet DE.pdf
106 KB
CAF 99 AXAD A Black - Technical Data Sheet EN.pdf
93 KB
CAF 99 AXAD A Black - Fiche Technique FR.pdf
185 KB
Safety Data Sheets (SDS) 3
CAF 99 AXAD A Black - Safety Data Sheet DE.pdf
486 KB
CAF 99 AXAD A Black - Fiche de Sécurité FR.pdf
585 KB
CAF 99 AXAD A Black - Scheda di Sicurezza IT.pdf
571 KB

Frequently asked questions about CAF 99 AXAD

Practical application and design questions — answered by SILITECH.

CAF 99 AXAD: 2K-activated silicone (acetic, black, thixotropic) — cures quickly even in closed systems and thick layers. Main applications include glass-ceramic cooktops, oven doors and viewing windows, and ship portholes.

One-component silicones cure through atmospheric moisture—they cannot fully cure where moisture cannot reach (closed gaps, thick layers, enclosed joints). Two-component systems like CAF 99 AXAD cure via an activator and do not require atmospheric moisture—the right choice when the adhesive joint is enclosed or the layer thickness is large (e.g., glass-ceramic bonding, ship portholes, oven doors).

CAF 99 AXAD adheres without primer to glass, ceramics, many metals (stainless steel, aluminum, copper in neutral variants), and numerous engineering plastics. Adhesion is not possible to PE, PP, PTFE, and silicone oils—these substrates are fundamentally incompatible with silicone. If in doubt, we recommend a preliminary test or consulting SILITECH regarding the specific material pairing.

Prepare the substrate to be clean, grease-free, and dry. Apply the sealant evenly from the cartridge or container—refer to the TDS for skin formation and curing times. Store in the unopened original container at 5 to 30 °C, protected from sunlight. Use opened containers promptly—for Acetic systems, reseal tightly immediately after opening. Consult the current Safety Data Sheet (SDS) before use.

In the comparison table above, you will find related CAF products with adapted properties—different color, different crosslinking system (acetic vs. neutral), or different mechanical properties. If you are unsure about the optimal choice, we would be happy to advise you—contact SILITECH with your requirements (substrate pairing, temperature, corrosion requirements, appearance).

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Product specifications

Product information
brand CAF
Manufacturer Elkem Silicones
Networking type Two-component (acetate-activated)
Number of components 2K (two-component)
consistency Thixotropic
Mixing ratio 9:1
Container 301 g
Other features
UV resistance No
Physical properties
Paint has hardened Black
Self-leveling No
Electrical properties
Electrical insulation Yes
Product approvals
Food contact No
Suitable for medical use No
Keywords
Keywords
High-temperature resistant black silicone CAF BLUESIL 2K silicone sealant ELKEM industrial Swiss bearing +300°C electrical insulation AXAD fast-curing glass ceramic oven door household appliances ship porthole
Mechanical properties
Shore hardness A51.0 Shore A
Modulus at 100% elongation2.3 MPa
Tensile strength4.3 MPa
Elongation at break235.0 %
Tear resistance10.0 kN/m
processing
Pot life at 23°C4.0 min
Physical & Thermal
Density (23°C)1.15 g/cm³
Temperature resistance (duration)-70 to 250 °C
Peak temperature (short-term)300 °C
thermal conductivity0.25 W/(m·K)
Electrical characteristics
Dielectric constant ε (1 kHz)3.2
Dielectric strength18.0 kV/mm
Contact resistance2e+15 Ω·cm
Loss factor tan δ0.004
storage
Shelf life in original packaging18 months
Storage temperature2 to 30 °C

Documents and datasheets

Safety Data Sheets (SDS) and Technical Data Sheets (TDS) are available for download: