3D-ADD CBA1 Bio Biocompatible Chemical Blowing Agent for foaming 3D prints

Product description

3D-ADD CBA1 Bio is a biocompatible chemical blowing agent paste designed to enable controlled post-print expansion in selected photopolymer 3D printing resins.

The additive is supplied as a ready-to-use paste that can be mixed with compatible thermoplastic SLA, DLP and LCD resins before printing. After printing and UV curing, a controlled thermal treatment activates internal gas generation, producing expanded cellular structures.

Application framework

Designed for use with compatible thermoplastic SLA, DLP and LCD resins to enable controlled post-print expansion through thermal activation after printing and UV curing.

Typical applications

• Production of expanded-cell sponges or foam-like structures through post-print thermal activation

Measured physical properties

• Supplied as a ready-to-use whitish paste
• Typical loading range: 5–20 wt%
• Typical starting point: 5–10 wt%
• Thermally activated gas release in the range of approximately 140–180 °C
• Excellent storage stability (1 year guaranteed shelf life; typically several years if stored below 70 °C)

Functional performance characteristics

• Universal blowing agent paste compatible with many flexible photopolymer resins
• Enables production of expanded-cell sponges or foam-like structures through post-print thermal activation
• Good suspension stability during printing with most compatible resins
• Minimal influence on the base mechanical properties of compatible resins
• Produces whitening in transparent resins and minor whitening in coloured systems

Processing and handling performance

• Easy dispersion in compatible resins using mild mixing
• Hand mixing or laboratory rotary mixers can be used (e.g. ~500 rpm for ~10 minutes)
• Optional use of 3D-ADD ASC1 anti-sedimentation additive for maximum stability control
• The product is supplied as a kit containing the additive, one graduated beaker and one empty 250 mL black bottle for resin mixing and storage
• Resin mixtures should be protected from ambient and natural light to prevent unintended curing
• Read: Technical Bulletin – Advanced Use of 3D-ADD CBA1 Bio

Chemical and safety characteristics

• Biocompatible formulation
• Safe, non-dangerous and non-flammable in supplied form and after thermal activation

Testing & processing disclaimer

After printing and UV curing, a controlled thermal treatment activates internal gas generation, producing expanded cellular structures.

Disclaimer

This material is supplied as a professional manufacturing material and is not marketed as a finished medical device. Final part performance and suitability must be validated by the user according to the intended application.

Document reference: TDS-3D-ADD-CBA1-BIO-EN | Version: 1.0 | Last updated: March 2026