This page explains what TerraBBs are made of and collects publicly available documentation related to the materials (e.g., lab testing and patents). The goal is to make our material choices and what can be verified as clear as possible.
Documentation under NDA
Some documentation (such as detailed composition data, the exact polymer grade, and certain test reports and certification materials) contains proprietary and commercially sensitive information and is therefore not published publicly. Where needed, we can share additional documentation under a Non-Disclosure Agreement (NDA) with relevant professional parties, such as research or regulatory partners, retailers, field operators, and event organizers.
If you require additional documentation for evaluation or verification purposes, please contact us and describe your use case.
Contact: info@terracomposites.com
What are TerraBB made of?
Polymer: bio-based PBS (the exact polymer grade is kept confidential).
Fillers:
- Titanium dioxide
- Aluminium oxide
- Silicon dioxide
- Barium sulphate
- Calcium carbonate
- Cerium oxide
Certifications
TÜV OK compost HOME (polymer grade)
The polymer grade used in TerraBB has TÜV OK compost HOME certification (polymer-level certification).
Important clarification:
- This certification applies to the polymer grade as certified.
- The finished TerraBB includes required fillers/additives, and product-level certification is a separate process.
Finished BB certification status
At this time, we have not applied for a product-level compostability certification for the finished TerraBB (finished formulation + fillers/additives).
Product-level certification is a separate and costly process, and it has been postponed to a later phase. We prefer to state this clearly rather than imply a certification we do not have.
Lab tests
TerraBB 0,20g TRUEBIO precision airsoft BBs
FTIR analysis (finished TerraBB)
We have performed FTIR (Fourier Transform Infrared) analysis on the finished TerraBB as a material “fingerprint” check (spectrum comparison to reference materials).
Based on reference spectrum comparisons, the sample did not identify as:
- Polyvinyl chloride (PVC)
- Polyethylene terephthalate (PET)
- Polyethylene (PE)
- Polypropylene (PP)
- Polystyrene (PS)
- Polylactic acid (PLA)
- Acrylonitrile butadiene styrene (ABS)
FTIR report (PDF): Download
Note: FTIR is a material identification method and not a biodegradability/compostability certification.
PFAS testing — Total Fluorine (finished TerraBB)
PFAS laboratory test report (PDF): Download
Total Fluorine analysis measures the overall fluorine content of the sample and is commonly used as a screening method for PFAS-related compounds. Low total fluorine levels indicate that PFAS compounds are absent or present only at trace levels.
Patents
Public patent (Finland)
FI20215977A1 — Finnish patent application publication
This is a published Finnish patent application related to the TerraBB material system or associated technical solutions.
Link:
https://fi.espacenet.com/publicationDetails/biblio?CC=FI&FT=D&II=0&ND=4&NR=20215977A1&KC=A1
(Note: The link opens the Espacenet publication page with detailed bibliographic data.)
Other pending patents
US2024352223A1 — International patent application publication
Link: https://worldwide.espacenet.com/patent/search/family/085602478/publication/US2024352223A1?q=pn%3DUS2024352223A1
Additional patent applications are currently pending and will be listed here once they become public.