madjack wrote:Cap'n, yes indeed we wanna see some pics and thanks for the info...this subject has been discussed before but hasn't really gone anywhere...I am sure there are others here who are as interested as I am to here your results
madjack
Guy wrote:Dear Sam,
You are not going to be able to get away with vacumm bagging ureathane and still be making a SIP. You will just be making a IP. I will try and find some of the previous posts on the PSI requirments and the proper Adhesive for ureathane vs. stryrene.
Artificer wrote:Captainsam,
How did your volume calculations and foam expansion match? Did you just make extra? I found the foam didn't quite expand as much as it should. I think the desired temp was 75-80, and I was only around 68-70.
Michael
captainsam wrote:I noticed you are pouring on the surface between the frame members and under what appears to be the roof skin.
Are you cutting the excess foam off flush or just closing the cavity and allowing the foam to expand to fill? If you overfill, where does the excess go? Could the pressure bow the skin out? I'm just not sure how you are doing this and I'm curious as I want to have a curved roof too.
Structural Insulated Panels
ISOSET® Adhesives
Water-based ISOSET adhesives use a two-part, emulsion polymer isocyanate technology to produce bonds with excellent creep, shear and tensile properties. Parts bonded with ISOSET adhesive are extremely durable and offer outstanding resistance to moisture and humidity. ISOSET adhesives have been specified for:
* engineered wood (I-joist, finger jointing, thick LVL)
* glucam
* structural foam-core panels
* hardwood flooring
* architectural and patio enclosures
* doors (fire-rated and lead-lined)
* millwork
ISOGRIP® Adhesives
ISOGRIP adhesives are one-part, 100-percent reactive, moisture-cured urethane adhesives, used for structural bonding of porous or non-porous substrates. For continuous process applications we offer catalyzed moisture-cured urethane adhesives that cure quickly. ISOGRIP has been specified for:
* exterior, structural load-bearing applications
* patio enclosures
* architectural panels
* foam-core panels
* refrigerator cooler panels
* exterior entry doors
* insulated garage door panels
Guy wrote: Isocet or Isogrip adhesive frrom Ashland Chemical (the people who make Valvoline for those who do not know Ashland is one of the premeir construction materials manufacturers in the world).
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