Pulp & Paper Making – Prolonging the Life of FRP Equipment with HTAC™ Veil

Pulp & Paper Making – Prolonging the Life of FRP Equipment with HTAC™ Veil

Many of the pulp and paper plants in North America are aging – the equipment is old and in need of maintenance and/or repair. Over time the harsh chemicals used in pulping and papermaking degrade the integrity of FRP bleaching towers, pulp retention tanks, J-tubes and FRP chlorine dioxide tanks. Periodic inspection, maintenance, and relining will significantly extend the life of the equipment.

Upon inspection, you may determine that remediation is necessary to maintain the integrity and safety of your pulping and papermaking operation. If the scope of work outlined by your inspector includes FRP relining, you will engage an FRP field services company to do the work for you.

It is important to understand that not all lining veils are the same and the performance will vary depending on the application. The optimal relining solution should provide anticorrosion and abrasion resistance at high temperatures to adequately protect the FRP equipment. It also must meet performance standards and regulatory requirements.

In side-by-side comparison tests of ECTFE, C-glass and polyester veils in sulfuric acid (98% at 250F/121C), sodium hypochlorite (13% at 200F/93C), sodium hydroxide (50% at 250F/121C), and nitric acid (20% at near boil), ECTFE veil performed very well. Only slight discoloration (due to a processing additive that does not deteriorate the ECTFE polymer) and only slight loss of strength in sodium hypochlorite was observed (whereas the others failed or completely dissolved). These tests were performed on veil fabrics, not composite samples, and were immersed in chemicals for 30 days.

For many years ECTFE meltblown was not available on the market. HTAC™ Veil – High Temperature Anti Corrosive meltblown veil – is now being manufactured by Monadnock Non-Wovens (MNW). HTAC is an apertured veil that is easy to laminate and wet-out in the relining process. It may be applied by hand lay-up and roll/tape winding, in an ortho winding or filament winding process.

Learn more about HTAC.

If you are a mill engineer, an FRP inspector or FRP field services company and you are interested in talking to us about HTAC, please don’t hesitate to reach out to Ray Whitby at MNW.

Celebrating 25 Years of Innovation & New Website

Celebrating 25 Years of Innovation & New Website

Monadnock Non-Wovens LLC (MNW) recently celebrated 25 years of manufacturing meltblown media for a wide range of markets and applications. Originally, MNW produced nonwoven filtration media for vacuum bags. Since then, it has evolved to design new and more high-performance technical products particularly in Automotive and Filtration media.

MNW’s ability to re-invent itself was crucial in responding to the COVID pandemic and recommendations from the CDC in late 2019. MNW began taking contracts to produce meltblown for surgical facemasks to help stem the spread of the virus. Fortunately, we are on the other side of the pandemic and MNW has shifted its focus to other necessary products.

Since the development of HPAM® in 2018, MNW has become an established, reputable, and specified media supplier to the global automotive industry offering Monadnock HPAM high-performance acoustic media.

Early in 2023, MNW introduced HTAC™, a high-temperature anti-corrosive composite media. It is made with ECTFE resin to meet the market need for high-performance filtration and protective media for semiconductor production, paper and pulp manufacturing, chemical storage/transport, and biotechnology.

The most recent product development is a super-hydrophilic meltblown material. As a wicking layer it has very desirable viscous liquid transport properties for use in applications where a dry surface is a necessity. Launch plans include a nursing pad distribution layer and potentially washable absorbent mats and cores used in personal care and pet products. “We have already commercialized the product in hygiene absorbent core applications,” said MNW President Jim Cree.

“It is an interesting time to be in the industrial nonwovens industry,” said Cree. “More and more customers are shifting their innovation sourcing from Asia to North America. With over 25 years of experience, we are well positioned to enter new markets for innovative high-performance composite media.”

A fitting tribute to a quarter century of innovation, MNW’s new website highlights its broad capabilities and the markets it serves. Today, you will find specialty fabrics and lofted nonwovens for sound attenuation, biotechnology, filtration, and other industrial and personal care applications.

For five years now, MNW has manufactured its products with 100% renewable electricity – continuing to support new renewable resource development through the investment in Green-e certified energy projects.

MNW employees are the heart of the organization, and they are committed to sustained growth and success. The team will support MNW through future product innovation over the years to come.

Announcing HTAC™ Veil

Announcing HTAC™ Veil

High Temperature Anti-Corrosive ECTFE Media For FRP Apertured Veil

Mt. Pocono, PA – December 5, 2023 – Introducing HTAC Veil, a new generation of veils used in the corrosion barrier of FRP (fiberglass reinforced plastic) equipment. MNW designed and developed the binder free HTAC apertured veil that is produced with meltblown ECTFE (ethylene chlorotrifluoroethylene) fluoropolymer resin.

Superior to other polymeric materials on the market, the benefits of HTAC Veil include very high chemical and abrasion resistance at high temperatures, and excellent fire retardancy (flame spread index of 0 per ASTM E-84).

HTAC Veil significantly extends the performance, integrity, and life of FRP tanks, tankers, scrubbers, pipes, ducts and stacks. Product characteristics include very high chemical resistance against strong acids, sodium hydroxide, sodium hypochlorite, chlorine dioxide and solvents.

With a high permeation resistance, it reduces blistering in hot concentrated hydrochloric acid. It has an apertured hole pattern of IPS-10 and is easy to inspect in a 100 mils FRP corrosion barrier.

“We are pleased to offer the HTAC Veil for critical manufacturing processes,” said MNW President Jim Cree. As for all MNW products, HTAC is manufactured with renewable electricity.

Send us a message if you would like to learn more. Or visit the HTAC Veil product page on this website.

Long Term Commitment to Automotive

Long Term Commitment to Automotive

As car manufacturing begins to come out from under the pandemic shroud, it’s facing a vastly different business dynamic. The industry experienced devastating supply chain disruptions across the globe and the effects continue into 2023.

Automotive component specs are hard-won and we know that supply chain disruptions can cause critical and costly stoppages in the manufacturing process.

You need to determine which suppliers will be with you for the long haul that will afford you more flexibility when times get tough.  You want suppliers that demonstrate a commitment to the industry with a longer-term view.  Choose partners that have strong roots and are committed to consistent quality, continuous improvement, and superior product performance. Buying American made materials will improve your odds when you are manufacturing in the United States.

Monadnock Non-Wovens (MNW) has served the automotive industry with its lofted melt-blown nonwoven NVH materials for over 20 years. HPAM® High Performance Acoustic Media offers a lighter weight solution with improved sound absorption at lower frequencies – key characteristics in all types of vehicles, and especially EV cars. HPAM, with its unique tunable two-sided scrim design, eliminates the need for multiple left/right SKUs.  HPAM is qualified across a broad range of automotive brands worldwide.

Acoustic Media
HPAM High Performance Acoustic Media

HPAM is 100% recyclable polypropylene and manufactured with Green-e certified renewable wind-powered electricity.

We understand the product testing, qualification, and specification process for Tier 1, 2, and 3 parts suppliers. And we continue to invest in the business and in partnerships to better serve this industry. Let us know if you’d like to learn more about MNW and HPAM.

Announcing Partnership with Midwest Filtration

Announcing Partnership with Midwest Filtration

Distributor of Air and Liquid Filtration Media

Midwest Filtration, LLC, a leader in nonwoven media and engineered products announced that it has entered into an exclusive agreement with Monadnock Non-Wovens to represent our comprehensive portfolio of meltblown filtration media. Midwest Filtration is our partner of choice in promoting high-quality meltblown nonwoven in both air and liquid filtration applications.

Learn more here.

Announcing New High-Performance Filtration

Announcing New High-Performance Filtration

HTAC™ – High Temperature Anti-Corrosion Media

Monadnock Non-Wovens is now offering the next generation of E-CTFE filtration media. MNW has designed and developed HTAC™ – a product that significantly extends the performance and life of liquid filtration systems.

HTAC is a uniform ECTFE meltblown copolymer with very high chemical and fire resistance.  The tolerance to pH 1-14 makes it a superior material solution to PVDF and PTFE in liquid filtration offering corrosion resistance against acids, caustic media, oxidizing agents and many solvents at high temperatures. HTAC is employed in the chloro-alkalis chemical processing, semi-conductor fabrication and pharmaceutical industries.

“We are pleased to offer HTAC for critical manufacturing processes,” said MNW President Jim Cree. “This innovative media development offers high permeation resistance and safety at high temperatures.”

As with all MNW products, HTAC is made with 100 percent renewable wind-powered electricity (Green-e® certified RECs). HTAC E-CTFE media is available in uncalendered and calendared meltblown roll goods in a range of weights.  It is also available in apertured versions for duct/pipe wrap veil applications.

Contact Ray Whitby to learn more.

For more information about Monadnock Non-Wovens, consult our website at www.mnwovens.com.



Monadnock Non-Wovens has restarted its production of E-CTFE anti-corrosive, chemical-resistant meltblown media. The tolerance to pH 1-14 makes it a more suitable material than PVDF and PTFE. It’s an optimal solution for the liquid filtration and chloro-alkalis chemical, electronic and pharmaceutical industries.

We plan to supply composite roll goods to the filtration industry. Contact Ray Whitby if you’d like to understand our capabilities and how we might work together.

Announcing New Business Development Manager – Automotive Products

Announcing New Business Development Manager – Automotive Products

We are pleased to announce that Sandra Jallow has been promoted to Business Development Manager, Automotive Products.

In her new role, Sandra will report to MNW President Jim Cree and will work with the automotive sales team to grow its insulation business and discover adjacent market opportunities.

MNW is committed to the growth of superior acoustic media products, including its HPAM® High Performance Acoustic Media, particularly as the demand for lightweight noise suppressing acoustics increase with the launch of the new class of EVs.

Since joining MNW in 2016, Sandra has successfully managed the customer service department and applied her expertise in quality to ensure compliance with MNWs third-party certified ISO 9001 Quality Management System. Sandra graduated with a B.S. in Accounting from Ramapo College, Mahwah, NJ, and she has formal training as an ISO 9001:2015 internal auditor.  She also achieved a Yellow Belt in Six Sigma.

“Sandra brings the leadership skills and tenacity that will ensure MNW’s customer service excellence and continued success in automotive and other insulation markets and applications,” said Jim Cree. “This new role empowers her to accomplish great things for our organization.”

Announcing New Leadership

Announcing New Leadership

Monadnock Non-Wovens (MNW), a manufacturer of meltblown synthetic media for the automotive, surgical face masks, and air and liquid filtration, announced today that James (Jim) Cree has joined the company as President. In his new role, Mr. Cree will lead the MNW team with a strategic and creative vision for the future.

Mr. Cree is an innovator and industry thought leader in the nonwovens industry and he has been awarded over 80 patents. Prior to joining MNW, he held key executive leadership roles with First Quality Enterprises, King of Prussia, PA, Clopay Plastics Products, Mason, OH, and Pantex International, Sulmona, Italy.

“We are fortunate to welcome Jim as the new President at MNW. He is a hands-on leader with a strong background in product and global market development. His skill set will help MNW strengthen channel partnerships, drive operational improvements, and expand into new markets,” said Richard Verney, Chairman and Chief Executive Officer of Monadnock.

Mr. Cree will assume his role effective immediately as we say farewell to Keith Hayward upon his retirement. We wish Keith all the best as he moves on to spend more quality time with his family.

Contact Information

Dawn Sampson
Monadnock Non-Wovens LLC
Phone: +1.570.839.9210 x232

New Media for N95 Respirator

New Media for N95 Respirator

We have developed and have available for sale Berry Compliant polypropylene melt blown non-woven media that can be incorporated in N95 respirator masks. Media is made in the USA and can be delivered in less than four weeks.

The standard 24gsm media gives an excellent penetration efficiency and dirt holding test when measured on the industry standard TSI-8130A. It is available in slit rolls with widths from 4”/100mm and up. The media is ideally suited to be incorporated in a respirator design which then can be tested for NIOSH compliance. (42CFR Part 84).

The typical filtration configuration involves two layers of the PD-N-171 within the respirator.

This is one grade of media that is part of a family of charged media that is commonly used in PPE such as surgical face masks which are also available from Monadnock Non-Wovens.

Technical data sheet on PD-N-171 is available here.

If you would like to contact a representative, send your inquiry here.

If you’d like to learn more about Monadnock Non-Wovens, go to the About Us section of our website.