Datasheet

Product name: DOWSIL™ 3145 RTV Mil-A-46146 Adhesive/Sealant
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Revision Date: 04.09.2020
Version: 4.0
Page 19 of 23
octamethylcyclotetrasiloxane
Octamethylcyclotetrasiloxane (D4) meets the current REACh Annex XIII criteria for PBT and
vPvB. In Canada, D4 has been assessed and deemed to meet the PiT criteria. However, D4
does not behave similarly to known PBT/vPvB substances. The weight of scientific evidence
from field studies shows that D4 is not biomagnifying in aquatic and terrestrial food webs. D4
in air will degrade by reaction with naturally occurring hydroxyl radicals in the atmosphere. Any
D4 in air that does not degrade by reaction with hydroxyl radicals is not expected to deposit
from the air to water, to land, or to living organisms.
Dodecamethyl cyclohexasiloxane
Dodecamethyl cyclohexasiloxane (D6) meets the current REACh Annex XIII criteria for vPvB.
However, D6 does not behave similarly to known PBT/vPvB substances. The weight of
scientific evidence from field studies shows that D6 is not biomagnifying in aquatic and
terrestrial food webs. D6 in air will degrade by reaction with naturally occurring hydroxyl
radicals in the atmosphere. Any D6 in air that does not degrade by reaction with hydroxyl
radicals is not expected to deposit from the air to water, to land, or to living organisms.
Decamethylcyclopentasiloxane
Decamethylcyclopentasiloxane (D5) meets the current REACh Annex XIII criteria for vPvB.
However, D5 does not behave similarly to known PBT/vPvB substances. The weight of
scientific evidence from field studies shows that D5 is not biomagnifying in aquatic and
terrestrial food webs. D5 in air will degrade by reaction with naturally occurring hydroxyl
radicals in the atmosphere. Any D5 in air that does not degrade by reaction with hydroxyl
radicals is not expected to deposit from the air to water, to land, or to living organisms. Based
on an independent scientific panel of experts, the Canadian Minister of the Environment has
concluded that "D5 is not entering the environment in a quantity or concentration or under
conditions that have or may have an immediate or long-term harmful effect on the
environment or its biological diversity, or that constitute or may constitute a danger to the
environment on which life depends".
12.6 Other adverse effects
Methyltrimethoxysilane
This substance is not on the Montreal Protocol list of substances that deplete the ozone layer.
octamethylcyclotetrasiloxane
This substance is not on the Montreal Protocol list of substances that deplete the ozone layer.
Dodecamethyl cyclohexasiloxane
This substance is not on the Montreal Protocol list of substances that deplete the ozone layer.
Decamethylcyclopentasiloxane
This substance is not on the Montreal Protocol list of substances that deplete the ozone layer.
SECTION 13: DISPOSAL CONSIDERATIONS
13.1 Waste treatment methods
Do not dump into any sewers, on the ground, or into any body of water. This product, when being
disposed of in its unused and uncontaminated state should be treated as a hazardous waste
according to EC Directive 2008/98/EC. Any disposal practices must be in compliance with all national