Date: Thu, 17 Mar 1994 05:12:01 -1000 From: Simo.Salanne@bofnet.mailnet.fi Message-Id: <2D887341. 2FB01*_G=Simo_S=Salanne_UA-ID=000000001_PRMD=BOFNET_ADMD=MAILNET_C=FI_@ MHS> Organization: Division of Applied Sciences, Harvard University Subject: Water Sticking (Was: Re: Sail Contruction Mark de Roussier writes: > > I've tried this out - on good fabric, its a fine idea - but you do have > to use *enough* water. 'A few drops' isn't, in my experience, enough. On less > than good fabric, the 'sticky' effect of the water can easily be overwhelmed > by stretch in the fabric. If the fabric is coated in any way, then forget it. > I would classify Icarex to be "coated" fabric. Water sticking works just fine. My experience comes only from working with Icarex, but I would expect the contrary: if the fabric is NOT coated, forget it. I agree to use "enough" water, for me it's seems to be a few drops. Larger panels need few more drops:-) Smooth Sewing Simo = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Sat, 19 Mar 1994 13:46:05 -1000 From: mark@murder.demon.co.uk (Mark de Roussier) Message-Id: <764145965snx@murder.demon.co.uk> Organization: damage Subject: Re: Water Sticking (Was: Re: Sail Contruction In article <2D887341.2FB01*_G=Simo_S=Salanne_UA-ID=000000001_PRMD=BOFNET_ADMD=MAILNET_C=FI_@MHS> Simo.Salanne@bofnet.mailnet.fi writes: > > I would classify Icarex to be "coated" fabric. Water sticking works > just fine. My experience comes only from working with Icarex, but > I would expect the contrary: if the fabric is NOT coated, forget it. > What is Icarex coated with ? I agree its shiny/smooth, but I had thought that was likely to be due to heat - sealing of the polyester in the course of the normal production process. I was thinking specifically of things like silicone coatings - i.e. coatings normally applied for their water - repellant properties ! > I agree to use "enough" water, for me it's seems to be > a few drops. Larger panels need few more drops:-) > Well actually this 'drops' idea didn't work at all, it just wasn't enough - I ended up completely dunking each bit in a bucket. Perhaps Finnish water is stickier !:) -- Mark de Roussier ************************************ A nice man is a man of nasty ideas. Jonathon Swift. ************************************ = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Sat, 19 Mar 1994 19:35:02 -1000 From: sasaki@das.harvard.edu (Marty Sasaki) Message-Id: Organization: Harvard OIT Network Services Subject: Re: Water Sticking (Was: Re: Sail Contruction In article <764145965snx@murder.demon.co.uk> mark@murder.demon.co.uk (Mark de Roussier) writes: >What is Icarex coated with ? I agree its shiny/smooth, but I had thought that >was likely to be due to heat - sealing of the polyester in the course of the >normal production process. I was thinking specifically of things like silicone >coatings - i.e. coatings normally applied for their water - repellant >properties ! Icarex is probably coated with a polyurethane of some sort. That's what makes one side shiny. The coating is added to make the fabric non-pourous to the wind and to help reduce bias stretch. Design of sailcloth takes into account the effects of the coating. -- Marty Sasaki Harvard University Sasaki Kite Fabrications sasaki@noc.harvard.edu Network Services Division 26 Green Street 617-496-4320 10 Ware Street Jamaica Plain, MA 02130 Cambridge, MA 02138-4002 phone/fax: 617-522-8546 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =