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Touching-Up Conversion Coatings

Wednesday, August 29, 2018 10:52:07 AM America/New_York

When it comes to the importance of conversion coatings, the aerospace industry and the military know corrosion is their enemy.  One of the best ways to prevent it and aid in the adhesion of adhesives and coatings is with conversion coatings.  Some difficulty exists when applying conversion coatings to small areas, especially in MRO operations.  That's where our Henkel Aerospace Touch-N-Prep pens come in.

Two conversion coatings are availabe in our convenient, ready to use, Touch-N-Prep pen packaging.  The Alodine 1132 is the hex-chrome option and the Alodine 871 is a tri-chrome.  The Touch-N-Prep pen is designed to save lavor, material, and time when applying a dry-in-place military specification approved conversion coating.

Alodine 1132 meets military specs:  MIL-DTL-81706 Type 2 Class 1A and 3


                                                         NSN Number: 8030-01-460-0246

                                                         Approved by several OE manufacturers

Alodine 871 meets military specs:  MIL-DTL-81706 Type 1 Class 1A and 3


                                                        NSN Number: 8030-01-560-9113

Please contact us with any questions.

Posted By Keith Mensing

Release Agents for...almost Everything

Friday, July 6, 2018 3:52:08 PM America/New_York

Industrial processes and methods of manufacturing have evolved over the decades, but one thing hasn't changed when it comes to molding.  You need your parts to release from the mold.  Sticking is B-A-D!!

The release agent needs to not only make sure parts don't stick, it also needs to provide the desired surface finish without cosmetic or structural flaws.  Structural flaws like nit lines and adhesion to metal issues can result in parts being rejected.  Poor surface finish on parts can require extra finishing work or cause them to be rejected.

We would like to be your full service supplier of release agents.  Whether you're doing rotational molding, composite molding, rubber molding, or...,we have release agents for...almost everything.  We also have the technical expertise to recommend a product to fit your needs and trouble shoot any issues you might have.

Please let us know how we may be of assistance, and we will work to earn your business.

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Posted By Keith Mensing

The Affects of Weather on Adhesives and Sealants

Wednesday, June 20, 2018 8:51:45 AM America/New_York

Recent weather conditions have brought us hot humid days well ahead of our "normal weather" for this time of year.  These hot humid conditions definitely affect 2-part and 1-part adhesives and sealants.  Here are a few reminders to help you with your manufacturing / aseembly processes.

2-Parts:  These adhesives cure due to a chemical reaction between the 2 components.  As the temperature rises in your facility or out in the field (service work and field repairs), the open time, working time, gel time, and cure time are all accelerated.  The general rule of thumb is that these times are cut in half for every 10°C/18°F increase in temperature above 24°C/75°F.

If your 2-part is a polyurethane, you should be taking exra care to protect the moisture sensitive material.  Purging containers after opening them before re-closing them with an inert gas that is heavier than air like dyr nitrogen or argon will help you maximize your shelf life.  Moisture exposure can cause bubbles to form.  You should also make sure any desiccant dryers are changed as needed.

1-Parts:  These moisture curing adhesive sealants will benefit from the additional humidity by curing faster.  That means they will also skin over more quickly.  Make sure you're getting parts assembled before this skin develops to get good adhesion.  If you're using 1-part polyurethanes, you'll need to make sure you purge containers before re-closing them with dry nitrogen or argon to maximiize their shelf life.  You may also notice dispense heads clogging due to this accelerated skinning.

As always, if you have any questions, please contact us for technical assistance.

Posted By Keith Mensing

The Affects of Weather on Your Resin Systems

Tuesday, April 24, 2018 3:58:46 PM America/New_York

It's that magical time of year where snow melts, temperatures warm, and flowers bloom.'s supposed to be.  On the way to the season of warmer days, we often suffer through wet cool conditions.  It's Spring!  It affects us all, but the extremes seem to be magnified here in the midwest and in the northern regions of the country.

This time of year calls from some true diligence in managing our use of sealants, adhesives, resins, and tapes.

     One part moisture curing products will actually cure faster as heaters are turned off and humidity levels rise.

     Two part adhesives will vary in cure speed as cool mornings slow down the cure process and warmer afternoons accelerate it.

     Resin systems, get coats and fiberglass resin systems, will need to have their gel times checked and ratios adjusted.

     Tapes will have less tack in cool mornings and poor adhesion to parts with condensation on them.

Don't forget your molds!  Those cool wet temperatures can wreak havoc on how your mold release performs if you're molding fiberglass.  Mold temps need to be above 60° or you'll likely have sticking issues.  If you have condensation on your will be worse!!!

For all the joy that Spring brings to us in the cold northern half of the country, don't forget to be attentive to the temperature and humidity levels of your production areas and your materials.  If you don't, there will be no joy in your Spring.

Posted By Keith Mensing

Scott Bader MouldGuard

Monday, April 23, 2018 3:15:11 PM America/New_York

New Peelable, Temporary Protective Coating from Scott Bader

Scott Bader Crystic Mouldguard

Crystic Mouldguard is a tough temporary coating specially designed for protecting moulds and mouldings. Often, decommissioned moulds are stored outside where they are subjected to standing water, UV light, dirt and frost and can become damaged or scratched. Many hours are usually wasted repairing moulds, cleaning and polishing the gelcoat surface ready for re-use. Most moulders would agree that they rarely achieve the same quality of surface that they had before storage.

Features and Benefits

  • Protects moulds and mouldings from damage, so eliminating the need for costly repairs.
  • Significant time and cost savings are made in labor and materials as moulds can be back in production in a fraction of the time.
  • Easy to apply – simply add 2% MEKP catalyst and brush or spray a single coat onto a mould surface, which must have release agent.
  • Quick curing.
  • Easy to remove – simply peel 

    and roll off the mouldguard 

    from the surface it is protecting
  • Prevents air, moisture, dirt, UV light 

    and frost from attacking the 

    mould surface.

  • Weather resistant in warm or wet 

    conditions for in excess of 12 months.

  • Tougher than water-based coatings.

Longterm Storage

Moulds can be covered with Crystic Mouldguard and left outside for long periods of time. The mould shown below had been left outside for 6 months before Crystic Mouldguard was removed very easily revealing a mould surface in excellent condition.

Scott Bader has formulated Crystic Mouldguard to give moulders the solution they have been looking for to save significant time and money. It is available in both brush and spray variants and is very easy to use and remove. A simple spray or brush coat cures quickly to give a weather resistant tight plastic film which can be peeled away easily revealing a perfectly clean surface, even after being outside for many months exposed to the elements.

Posted By Jared Rudolph

Tesa Tape Solutions for Elevators

Friday, April 6, 2018 10:37:26 AM America/New_York

Tesa Tape Soluitons for Elevators

There are many opportunities to utilize Tesa tapes for replacement of liquid contact adhesives in panel production for elevators.  According to Richard King, Tesa Specialist, these applicaitons include full tape lamination and tape strip lamination of materials to substrates to cladding of elevator doors.  The elevator OEM's have been using Tesa tape for decades.

As the aesthetics of elevators have changed, so to have the materials and bonding solutions. Tesa is on the front of this evolution and can assist with the development of these products.

An important factor in modern day building construction is the use of "green" products.  Most customers are interested in “green” products that will enable them to get LEED’s certification.  Tesa has provided an official letter regarding this on several of their tapes, and they have a specific piece of literature for elevator manufacturing.  If you don’t have an elevator application, much of this would also apply to architectural cladding applications.

Please contact us with your application questions, and we'll work with you to provide the solution you need.

Posted By Keith Mensing

Structural Adhesives for Service Trucks

Friday, March 30, 2018 10:24:30 AM America/New_York

Using LORD® structural adhesives to bond truck bodies during manufacturing, rather than welding or fastening, can reduce labor costs and cycle time. In addition LORD adhesives increase throughput, reduce material costs and weight and improve strength. What makes us different is our exceptional technical support dedicated to ensure your every design need is met. Our adhesives bond to various substrates including coated, painted, bare metal substrates, plastics and composites. We offer multiple cure speeds to fit your application requirements. We also offer glass beads for bondline control to prevent over-clamping.

One adhesive application to consider is the manufacturing of door closures.

Door Closures

Door closures can be one of the most challenging features for manufacturing quality and aesthetics. Fortunately, we have the proficiency to help reduce or replace welding frames thus creating a more cost effective and aesthetically pleasing final product.

Posted By Keith Mensing

Christmas Closure 2017

Thursday, December 21, 2017 10:45:14 AM America/New_York

Rudolph Bros. & Co. will be closed from December 25th to January 2nd, 2018.

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Posted By Jared Rudolph

Keith Mensing Earns Certified Composites Technician Certificate

Wednesday, December 13, 2017 2:06:40 PM America/New_York

Keith Mensing has earned the status of Certified Composites Technician by the ACMA (American Composites Manufacturing Association).

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Posted By Jared Rudolph

CHEM TREND Zyvax 1070W Mold Release

Thursday, October 12, 2017 10:00:25 AM America/New_York

Chem-Trend introduces revolutionary release agent for aerospace composites molding

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Posted By Admin Istrator

Items 1 to 10 of 11 total

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