Dave: If you are using styrene for the extension then I would use MEK. Paul Vaughn
________________________________ From: David Engle <riroc...@att.net> To: S-Scale <S-Scale@yahoogroups.com> Sent: Tuesday, October 8, 2013 8:07 AM Subject: {S-Scale List} 802 coupler boxes Has anyone had the occasion to cement a KD-802 box to a piece of styrene, such as an extension mount. What would the best cement for this, either a Tenax, ACC, or JBWeld type. Thanks Much. Dave Engle