In reply to Post #7
A couple of points on this ;

1/ Do you realise how small these are ? Less than 10 thousandths millimeter . Even if a carp swallows a pop-up and digests all the base mix the spheres will pass straight through as they are inert and too small to be ground up b the carps teeth.

2/The risks to humans using the spheres in bait manufacture are small , and neglidgable if you follow the manufacturers recommended safety precautions . Here is an extract from the 3M Scotchlite Glassbubbles safety data sheet which are the most commonly used type ;

Inhalation:
Upper Respiratory Tract Irritation: Signs/symptoms may include cough, sneezing, nasal discharge, headache, hoarseness, and nose
and throat pain.
Prolonged or repeated exposure may cause:
Lung Effects: Signs/symptoms may include difficulty breathing, cough, wheezing, weakness, increased heart rate, bluish
colored skin (cyanosis), sputum production and changes in lung function tests.
Ingestion:
Gastrointestinal Irritation: Signs/symptoms may include abdominal pain, nausea, diarrhea and vomiting.

8.2 PERSONAL PROTECTIVE EQUIPMENT (PPE)
8.2.1 Eye/Face Protection
Avoid eye contact.
The following eye protection(s) are recommended: Safety Glasses with side shields.
3M MATERIAL SAFETY DATA SHEET SCOTCHLITE BRAND GLASS BUBBLES, TYPES B, K, L, and S 11/27/2002
Page 4 of 8
8.2.2 Skin Protection
Select and use gloves and/or protective clothing to prevent skin contact based on the results of an exposure assessment. Consult with
your glove and/or protective clothing manufacturer for selection of appropriate compatible materials.
Gloves made from the following material(s) are recommended: Neoprene, Nitrile Rubber.
8.2.3 Respiratory Protection
Select one of the following NIOSH approved respirators based on airborne concentration of contaminants and in accordance with
OSHA regulations: Half facepiece or fullface air-purifying respirator with P95 particulate filters. Consult the current 3M Respiratory
Selection Guide for additional information or call 1-800-243-4630 for 3M technical assistance.
8.2.4 Prevention of Swallowing
Do not eat, drink or smoke when using this product. Wash exposed areas thoroughly with soap and water.

This all sounds very dangerous , but if you looked at a similar data sheet for talc it would scare you sh1tless .