买前请咨询，奚祥13816755518，请勿直接付款
3M™ iM30K Hi-Strength
Glass Bubbles
Introduction
3M™ iM30K Hi-Strength Glass Bubbles are unique, opaque,
white-colored, fine particle size, high-strength microspheres.
This product is typically used to reduce VOC levels; increase
filler loadings; reduce sag; improve hardness; and add burnish,
scrub and abrasion resistance to a variety of coating formulations.
Typical Properties Not for specification purposes
Material Description
Property iM30K
Shape Hollow spheres with thin walls
Composition Soda-lime-borosilicate glass
Color, Unaided Eye White, powder
Physical Properties
Property iM30K Test Method
Isostatic Crush Strength (psi) 28,000 3M QCM 14.1.8
True Density (g/cc) 0.60 3M QCM 14.24.1
Packing Factor (bulk density
to true particle density) 63%
Oil Absorption (g oil/100 cc) 33.5 ASTM D282-84 of
polymer additive
Softening Point (°C) 600
Flotation (density<1.0 g/cc) 90% (in volume) 3M QCM 37.2
Volatile Content (by weight) 0.5% max. 3M QCM 1.5.7
Alkalinity (milliequivalents) 0.5 3M QCM
55.19/gram max
pH (5% loading in water) 9.5 ASTM D3100-1982
Diameter (average) 18 microns 3M QCM 193.0
Particle Size and Distribution
Property iM30K
10th Percentile 9 microns
25th Percentile 12 microns
50th Percentile 16 microns
75th Percentile 21 microns
90th Percentile 28 microns
95th Percentile 33 microns
Formulating with iM30K Glass Bubbles
iM30K glass bubbles are best dispersed by adding to the letdown
phase under low shear conditions to minimize microsphere
breakage. Use of a dispersant will aid in the wet-out and dispersion
of these products. Breakage may occur if the product is severely
processed. To minimize breakage, reduce exposure to high shear
processes such as high speed Cowles mixing blade, and point
contact shear such as gear pumps and 3-roll mills.
Product Storage
Ideal storage conditions include unopened cartons in a dry and
temperature controlled warehouse. Extended exposure of iM30K
glass bubbles boxes to high humidity and/or conditions susceptible
to condensation may result in some amount of “caking” of
the product. To minimize the potential for caking and thereby
maximize storage life, the following suggestions are offered:
Carefully re-tie opened bags i 1. mmediately after use.
2. If the polyethylene bag is punctured during shipping or
handling, seal the hole as soon as possible or insert the
contents into an undamaged bag.
3. During hot and/or humid months, store boxes in the driest,
coolest space available.
If controlled storage conditions are unavailable, carry a
minimum inventory and process on a “first in/first out” basis.
Product Handling and Safety
Handling
Due to the low weight and small particle size of 3M™ iM30K
Hi-Strength Glass Bubbles , dusting may occur while handling
and processing. To minimize the dusting potential during
handling, consider the following:
Do not open p • ackages until ready to use.
• Upon opening, have an air siphon near the opening to pull
away airborne particles. (Dust collection equipment may be
required – check with local OSHA regulations.)
• Remove product with a suction “wand” (with slight positive
pressure aeration) and transfer to a closed mixing tank inside
fully contained piping. If a closed mixing tank is not available,
use dust collection equipment as close as practical to the point of
entry. Pneumatic conveyor systems have been used successfully
to transport product without dusting from shipping containers
to batch mixing equipment. Equipment vendors should be
consulted for specific recommendations.
• Static eliminators should be used to prevent static buildup.
Safety
For worker protection, please consider the following:
• Use chemical safety goggles for eye protection.
• For respiratory system protection wear an appropriate
NIOSH/MSHA approved respirator. (For additional information
about personal protective equipment, refer to the Material Safety
Data Sheet.)
• Use appropriate ventilation/dust collection in the work area.
Important
Notice to Purchaser: The information in this publication is based on tests that we believe are reliable. Your results may vary due to differences in test types and conditions. You
must evaluate and determine whether the product is suitable for your intended application. Since conditions of product use are outside of our control and vary widely, the following is made
in lieu of all express and implied warranties (including the implied warranties of merchantability and fitness for a particular purpose): Except where prohibited by law, 3M’s only obligation
and your only remedy, is replacement or, at 3M’s option, refund of the original purchase price of product that is shown to have been defective when you received it. In no case will 3M
be liable for any direct, indirect, special, incidental, or consequential damages (including, without limitation, lost profits, goodwill, and business opportunity) based on breach of warranty,
condition or contract, negligence, strict tort, or any other legal or equitable theory.
