http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 13.04Change: 0.08
R/$ = 12.05Change: 0.25
Au 1186.86 $/ozChange: 1.06
Pt 1142.00 $/ozChange: 1.50
 
 
Note: Search is limited to the most recent 250 articles. Set date range to access earlier articles.
Where? With... When?








Start
 
End
 
 
And must exclude these words...
Close Main Search
Close Main Login
My Profile News Alerts Newsletters Logout Close Main Profile
 
Agriculture   Automotive   Chemicals   Competition Policy   Construction   Defence   Economy   Electricity   Energy   Environment   ICT   Metals   Mining   Science and Technology   Services   Trade   Transport & Logistics   Water  
What's On Press Office Tenders Suppliers Directory Research Jobs Announcements Letters Contact Us
 
 
 
RSS Feed
Article   Comments   Other News   Research   Magazine  
 
 
Aug 10, 2012

Solid adhesives benefit industry

Back
Engineering|Cleaning|Components|Flow|Industrial|System|Cleaning|Equipment|Flow|Oil|Ken Harvill
Engineering|Cleaning|Components|Flow|Industrial|System|Cleaning|Equipment|Flow||
engineering|cleaning-company|components|flow-company|industrial|system|cleaning|equipment|flow-industry-term|oil|ken-harvill
© Reuse this



Several advantages exist when using preformed adhesive epoxies instead of liquid adhesives, manufacturer of adhesive preforms Multi-Seals technical support manager Ken Harvill tells Engineering News.

He states that the biggest advantage of using preformed adhesives is that solid preforms remain so until they are heated, enabling epoxy to flow consistently onto the desired component, whereas liquid adhesives typically drip and dispense inconsistently onto unwanted areas of a component.

Multi-Seals’ US-manufactured Uni-form and Poly-form adhesive seals were both developed as alternatives to liquid adhesives.

The Uni-form is a one-part epoxy resin that is solid at room temperature. When heated, it melts and cures, forming a consistent seal to protect components from dust, moisture, oil, flux, industrial cleaning solvents, conformal coatings and other contaminants.

Meanwhile, the Poly-form is flexible before curing, which allows the manufacturer to produce larger and thinner adhesive configurations, says Harvill.

He notes other advantages of preforms are that they are premixed and have a consistent viscosity.

“This is because of a predetermined catalyst-to-resin ratio that produces a complete one-component system, resulting in predictable and consistent results, compared with variable mixed and metered liquid epoxy performance,” he explains.

Further, the viscosity of preforms remains consistent from seal to seal and batch to batch, whereas liquid epoxy continues to polymerise as it is dispensed, causing equipment clogs and variations in viscosity and seal quality.

The rapid manual and automated dispensing abilities of solid adhesives far exceed those of manually dispensed liquids, states Harvill.

Multi-Seals’ Uni-form adhesive, in particular, is well suited to a variety of automatic or semiautomatic sealing equipment dispensers such as templates, pick-and-place and bowl-fed gravity track methods.

Further, the solid adhesive enables simple cleanup.

Preform residue is easily swept up, while handling equipment needs to be wiped down only once or twice a week, says Harvill.

In comparison, liquid epoxy usually requires extensive cleanup procedures.

Edited by: Chanel de Bruyn
© Reuse this Comment Guidelines (150 word limit)
 
 
 
 
 
 
 
 
Other Seals, Gaskets and Sealing Mechanisms News
IMPROVING RELIABILITY The PFR-throat bushing restored the gland seal to specification in the wastewater pump
Mechanical seals company Aesseal has supplied a specialised PFR-throat bushing to restore the gland seal to specification in a wastewater pump serving the Umhlatuzana Inlet sewage pumpstation (SPS), in Durban. The bushing fitting forms part of eThekwini Water and...
INCREASED PRODUCTION The Seal Maker SML 500e machine can produce more than 180 standardised seals
South Africa-based bearing supplier Bearing Man Group (BMG), which will celebrate its fortieth anniversary this year, will host the first BMG Expo next month. This industrial productivity exhibition will be held at the BMG Park, in Johannesburg, from September 18 to...
LASTING SUCCESS EagleBurgmann mechanical slurry seals have been in use uninterruptedly for more than two years
Sealing solutions company EagleBurgmann Seals South Africa (SA) has registered a 20-fold increase in sales for its slurry application mechanical seals in the past two years and aims to increase its sales by another 25% this year, says EagleBurgmann Seals SA...
More
 
 
Latest News
Updated 13 minutes ago South Africa's rand extended losses against the dollar early on Monday after a statement by US Federal Reserve chairperson Janet Yellen on Friday signalled the bank was on course to raise interest rates later this year, stoking greenback buying. By 0645 GMT the rand...
Updated 45 minutes ago Creamer Media’s Electricity 2015 report provides an overview of State-owned power utility Eskom and independent power producers, as well as electricity planning, transmission, distribution and the theft thereof, besides other issues.
DA Parliamentary leader Mmusi Maimane
Updated 1 hour 13 minutes ago Deputy President Cyril Ramaphosa must provide the country and Parliament with a comprehensive report on the state of Eskom, the Democratic Alliance said on Sunday. DA Parliamentary leader Mmusi Maimane said in a statement he had written to Ramaphosa requesting that...
More
 
 
Recent Research Reports
Projects in Progress 2015 - First Edition (PDF Report)
In fact, this edition of Creamer Media’s Projects in Progress 2015 supplement tracks developments taking place under the Renewable Energy Independent Power Producer Procurement Programme, which has had four bidding rounds. It appears to remain a shining light on the...
Electricity 2015: A review of South Africa's electricity sector (PDF Report)
Creamer Media’s Electricity 2015 report provides an overview of State-owned power utility Eskom and independent power producers, as well as electricity planning, transmission, distribution and the theft thereof, besides other issues.
Construction 2015: A review of South Africa’s construction sector (PDF Report)
Creamer Media’s Construction 2015 Report examines South Africa’s construction industry over the past 12 months. The report provides insight into the business environment; the key participants in the sector; local construction demand; geographic diversification;...
Liquid Fuels 2014 - A review of South Africa's Liquid Fuels sector (PDF Report)
Creamer Media’s Liquid Fuels 2014 Report examines these issues, focusing on the business environment, oil and gas exploration, the country’s feedstock supplies, the development of South Africa’s biofuels industry, fuel pricing, competition in the sector, the...
Water 2014: A review of South Africa's water sector (PDF Report)
Creamer Media’s Water 2014 report considers the aforementioned issues, not only in the South African context, but also in the African and global context, and examines the issues of water and sanitation, water quality and the demand for water, among others.
Defence 2014: A review of South Africa's defence industry (PDF Report)
Creamer Media’s Defence 2014 report examines South Africa’s defence industry, with particular focus on the key participants in the sector, the innovations that have come out of the sector, local and export demand, South Africa’s controversial multibillion-rand...
 
 
 
 
 
This Week's Magazine
Projected capital expenditure (capex) in the South African automotive assembly industry should reach a record R7.48-billion this year, says the National Association of Automobile Manufacturers of South Africa (Naamsa) in its 2014 fourth quarter business review. Capex...
After several years of navigating project-threatening red tape and currency fluctuations, the 4.4 MW Bronkhorstspruit biogas power plant, which will supply clean energy to a leading automotive manufacturer in Gauteng, is expected to enter production before June....
RESOURCEFUL The raw material for the pilot plant would be supplied from the dissolving wood pulp plants at Sappi’s Saiccor and Ngodwana mills, in South Africa, and the Cloquet mill, in the US
South African paper and pulp producer Sappi reported earlier this month that it would build a pilot plant for the production of low-cost Cellulose NanoFibrils, or CNF (nanocellulose) at the Brightlands Chemelot Campus in Sittard-Geleen in the Netherlands.
The long-term outlook for Nigeria is a country that has the potential to be very strong. So affirmed International Monetary Fund (IMF) Nigeria Mission Chief and Senior Resident Representative Dr Gene Leon on recently. "But we are starting from a point of huge...
Poor infrastructure planning and inadequate maintenance are becoming increasingly problematic for new developments and the associated infrastructure required to support such developments. In many urban and rural municipalities, the state of infrastructure has been...
 
 
 
 
 
 
 
 
 
Alert Close
Embed Code Close
content
Research Reports Close
Research Reports are a product of the
Research Channel Africa. Reports can be bought individually or you can gain full access to all reports as part of a Research Channel Africa subscription.
Find Out More Buy Report
 
 
Close
Engineering News
Completely Re-Engineered
Experience it now. Click here
*website to launch in a few weeks
Subscribe Now for $96 Close
Subscribe Now for $96